Seismicity by period · derived statistics from Skjálftalísa (Icelandic Met Office)
Status (automatic)
No particular signs of unrest in the last 24 hours — 0 earthquakes recorded, within the system's normal range.
VONA (Eyjafjallajökull): Green (unchanged since 2015-03-01, no VONA notice issued) · source
Volcano is in normal, non-eruptive state.
VONA = Volcano Observatory Notice for Aviation; the official Met Office colour code for aviation. Independent of Skjálfti's automatic analysis.
🕰️ Last eruption / event — 16 years ago
The 2010 Eyjafjallajökull eruption(2010-05-22). Largest aviation closure in Europe since WWII — 100,000 flights cancelled in 6 days. Eyjafjallajökull erupts rarely (previously 1821–23) — next eruption uncertain.
Central volcano beneath the namesake glacier. The 2010 eruption produced an ash cloud that disrupted air travel across Europe. Erupts rarely (previously 1821–23). (overview — more at vedur.is) · circle on the map = rough outline of the system (radius).
Subglacial system: a subglacial eruption can cause a jökulhlaup (sudden glacial meltwater flood) with little warning, and volcanic gases (incl. SO₂, CO₂) can be dangerous near vents and may pool in hollows. These are standing features of the system, not a sign of an imminent eruption.
📜 Did you know?
Historical pattern: Eyjafjallajökull eruptions have almost always been followed by Katla within 1-2 years (1612→1625, 1821→1823). After 2010, however, Katla has been quiet for 16 years — unusual. The 2010 eruption halted 107,000 flights over Europe across 8 days (the largest aviation closure in Europe since WWII).
Historical eruptions in the system — points colored by size, blue circle shows where we are now in time.
❓ What if Eyjafjallajökull erupts again?
Timeline: The 2010 eruption took ~3 months of buildup (GPS uplift + seismicity). Current monitoring should give days-to-weeks warning. Ash: 2010 produced very fine-grained ash that stayed high in the atmosphere. 100,000 flights cancelled over 6 days across Europe — largest aviation closure since WWII. Jökulhlaup: Markarfljót onto its floodplain. Peak ~5,000-15,000 m³/s. Ring Road and Markarfljót bridge at risk. Settlements: None directly at risk (none within 10 km), but Hvolsvöllur and Vík may lose air quality. Eyjafjallajökull erupts rarely — last 1821-23, prior 1612. Next eruption uncertain but likely not in coming decades. Sources: 2010 eruption, Gudmundsson et al. 2010 (JGR).
This is not a forecast. Based on historical experience and official hazard assessments from the Met Office / Civil Protection.
Points = earthquake locations in the selected window, coloured by magnitude: ● M3+ · ● M2+ · ● smaller (a sample if more than 800).
Earthquakes
0
Largest
–
M3,0+
0
Depth range
–
Earthquakes over time
Cumulative count · 0 earthquakes · countmoment
Depth (0 km at top).
Not enough depth data.
Magnitude distribution
Earthquakes
0
Largest
–
M3,0+
0
Depth range
–
Earthquakes over time
Cumulative count · 0 earthquakes · countmoment
Depth (0 km at top).
Not enough depth data.
Magnitude distribution
Earthquakes
0
Largest
–
M3,0+
0
Depth range
–
Earthquakes over time
Cumulative count · 0 earthquakes · countmoment
Depth (0 km at top).
Not enough depth data.
Magnitude distribution
Earthquakes
4
Largest
M1.2
M3,0+
0
Depth range
1–14 km
Earthquakes over time
Cumulative count · 4 earthquakes · total moment ≈ M1.4 · countmoment
Depth (0 km at top).
Magnitude distribution
Depth cross-sections — color by age (orange=newest, grey=older), point size by M. Rising cluster = possible magma intrusion.
Earthquakes
11
Largest
M1.5
M3,0+
0
Depth range
0–14 km
Earthquakes over time
Cumulative count · 11 earthquakes · total moment ≈ M1.7 · countmoment
Depth (0 km at top). Grey: fixed depth.
Magnitude distribution
Depth cross-sections — color by age (orange=newest, grey=older), point size by M. Rising cluster = possible magma intrusion.
Earthquakes
23
Largest
M1.8
M3,0+
0
Depth range
0–14 km
Earthquakes over time
Cumulative count · 23 earthquakes · total moment ≈ M2.0 · countmoment
Depth (0 km at top). Grey: fixed depth.
Magnitude distribution
Depth cross-sections — color by age (orange=newest, grey=older), point size by M. Rising cluster = possible magma intrusion.
Earthquakes
51
Largest
M3.0
M3,0+
2
Depth range
0–14 km
Earthquakes over time
Cumulative count · 51 earthquakes · total moment ≈ M3.2 · countmoment
Depth (0 km at top). Grey: fixed depth.
Magnitude distribution
Depth cross-sections — color by age (orange=newest, grey=older), point size by M. Rising cluster = possible magma intrusion.
Note: before February 2026 about half of events lacked an automatic magnitude, so magnitude-dependent figures (b-value, count of M≥X) under-count earlier periods — the catalogue is not homogeneous across this window. Cumulative moment is barely affected.
Earthquakes
166
Largest
M3.0
M3,0+
3
Depth range
0–25 km
Earthquakes over time
Cumulative count · 166 earthquakes · total moment ≈ M3.4 · countmoment
Depth (0 km at top) — shallowing in the data (5.2→3.8 km). Grey: fixed depth.
Magnitude distribution
Depth cross-sections — color by age (orange=newest, grey=older), point size by M. Rising cluster = possible magma intrusion.
Note: before February 2026 about half of events lacked an automatic magnitude, so magnitude-dependent figures (b-value, count of M≥X) under-count earlier periods — the catalogue is not homogeneous across this window. Cumulative moment is barely affected.
Earthquakes
370
Largest
M3.9
M3.0+
7
Days with data
274
This is a reduced view: it is built from the daily aggregate (counts, moment, magnitude bands, depth histogram) rather than individual events. Map points, the depth scatter, cross-sections and the migration fit are therefore missing — they need each event's location and depth. Counts, total moment and the b-value are exact, not approximated.
Earthquakes over time
Cumulative count and moment
Total moment of all events in the window equals a single Mw 4.2
Note: before February 2026 about half of events lacked an automatic magnitude, so magnitude-dependent figures (b-value, count of M≥X) under-count earlier periods — the catalogue is not homogeneous across this window. Cumulative moment is barely affected.
Earthquakes
726
Largest
M3.9
M3.0+
7
Days with data
535
This is a reduced view: it is built from the daily aggregate (counts, moment, magnitude bands, depth histogram) rather than individual events. Map points, the depth scatter, cross-sections and the migration fit are therefore missing — they need each event's location and depth. Counts, total moment and the b-value are exact, not approximated.
Earthquakes over time
Cumulative count and moment
Total moment of all events in the window equals a single Mw 4.2
Note: before February 2026 about half of events lacked an automatic magnitude, so magnitude-dependent figures (b-value, count of M≥X) under-count earlier periods — the catalogue is not homogeneous across this window. Cumulative moment is barely affected.
Earthquakes
17.501
Largest
M3.9
M3.0+
23
Days with data
1.536
This is a reduced view: it is built from the daily aggregate (counts, moment, magnitude bands, depth histogram) rather than individual events. Map points, the depth scatter, cross-sections and the migration fit are therefore missing — they need each event's location and depth. Counts, total moment and the b-value are exact, not approximated.
Earthquakes over time
Cumulative count and moment
Total moment of all events in the window equals a single Mw 4.5
Note: before February 2026 about half of events lacked an automatic magnitude, so magnitude-dependent figures (b-value, count of M≥X) under-count earlier periods — the catalogue is not homogeneous across this window. Cumulative moment is barely affected.
Earthquakes
19.550
Largest
M4.1
M3.0+
36
Days with data
2.721
This is a reduced view: it is built from the daily aggregate (counts, moment, magnitude bands, depth histogram) rather than individual events. Map points, the depth scatter, cross-sections and the migration fit are therefore missing — they need each event's location and depth. Counts, total moment and the b-value are exact, not approximated.
Earthquakes over time
Cumulative count and moment
Total moment of all events in the window equals a single Mw 4.7
Note: before February 2026 about half of events lacked an automatic magnitude, so magnitude-dependent figures (b-value, count of M≥X) under-count earlier periods — the catalogue is not homogeneous across this window. Cumulative moment is barely affected.
Depth is automatic and uncertain; earthquakes alone do not show magma movement — deformation (GPS) and gas are needed. Grey points: automatic fixed-depth values. b-value computed for M≥1.5 (automatic magnitudes make lower completeness unreliable). Preliminary data.
STE2 — land subsiding ~60 mm/yr (seasonally adjusted)
REYK (Reykjavík) — reference ~+0 mm/yr
Up = land rising (possible magma accumulation), down = subsidence. From Nevada Geodetic Lab (third-party processing, ~3-week lag, latest 2026-05-02). Interpreted deformation: Icelandic Met Office.
🌊 Volcanic tremor — The baseline tremor is currently elevated but its variations are well explained by strong…
IMO tremor plot (station esk). Most of the signal is weather and surf — not eruption confirmation. All stations: vedur.is ↗.
Weather now: waves 3.7 m — notable — likely weather.
The baseline tremor is currently elevated but its variations are well explained by strong local weather and ocean waves. (AI)
Band analysis past 9 days (from digitized RSAM values). High 2-4 Hz + low 0.5-1 Hz = possible magma-movement signal; high 0.5-1 Hz without 2-4 Hz = weather/surf.
Earthquakes in the system
Time (UTC)
Mag
Depth (km)
Area
2026-08-17 01:01
M0.8
1.0
Other areas
2026-08-16 10:29
M1.2
1.6
Other areas
2026-08-16 07:19
M1.2
12.4
Other areas
2026-08-14 13:34
M0.8
14.3
Other areas
2026-08-05 23:55
M0.0
5.2
Other areas
2026-08-05 09:42
M1.2
0.5
Other areas
2026-08-02 23:40
M0.4
10.6
Other areas
2026-06-25 01:27
M1.5
9.3
Other areas
2026-06-23 04:51
M-0.6
0.3
Other areas
2026-06-15 23:20
M1.0
4.5
Other areas
2026-06-14 23:22
M0.6
1.9
Other areas
2026-06-13 11:29
M0.4
0.0
Other areas
2026-06-12 09:59
M0.2
8.7
Other areas
2026-06-10 12:15
M0.8
0.0
Other areas
2026-06-07 07:45
M1.8
1.1
Other areas
2026-06-03 17:59
M0.4
5.5
Other areas
2026-05-29 04:52
M1.0
2.2
Other areas
2026-05-28 19:00
M1.4
5.6
Other areas
2026-05-06 21:43
M-0.2
5.0
Other areas
2026-05-01 18:01
M0.5
3.6
Other areas
2026-04-26 01:16
M0.2
2.1
Other areas
2026-04-26 01:11
M0.5
8.8
Other areas
2026-03-25 13:34
M0.5
6.6
Other areas
2026-02-03 21:23
M0.8
2.7
Other areas
2026-01-31 11:56
M3.0
5.2
Other areas
2026-01-06 21:39
M2.2
4.3
Other areas
2026-01-01 15:06
–
3.7
Other areas
2025-12-28 13:59
–
3.6
Other areas
2025-12-25 00:03
–
5.3
Other areas
2025-12-15 17:59
M0.0
1.1
Other areas
2025-12-04 15:30
M0.7
2.9
Other areas
2025-11-28 08:08
M0.6
0.8
Mýrdalsjökull (Katla)
2025-11-24 12:27
M0.6
1.1
Other areas
2025-11-18 13:16
M1.7
5.2
Other areas
2025-11-18 08:29
M1.8
5.2
Other areas
2025-11-02 05:32
M0.9
1.1
Other areas
2025-10-30 12:54
M0.3
1.4
Other areas
2025-10-26 09:09
M-0.3
1.1
Other areas
2025-10-22 12:43
M0.2
5.2
Other areas
2025-10-22 04:58
M1.1
5.2
Other areas
2025-10-22 04:27
M0.0
5.2
Other areas
2025-10-22 01:57
M1.1
14.5
Other areas
2025-10-20 12:14
M3.0
2.2
Other areas
2025-10-20 11:29
–
7.1
Other areas
2025-10-11 17:10
M0.6
11.6
Other areas
2025-10-11 08:48
M0.5
4.0
Other areas
2025-10-08 14:07
M0.7
8.7
Other areas
2025-10-03 08:06
M2.5
4.2
Other areas
2025-10-02 18:09
M1.8
4.8
Other areas
2025-09-30 01:28
M0.5
3.0
Other areas
2025-09-12 03:44
M0.3
1.1
Other areas
2025-09-09 11:20
M0.7
1.1
Mýrdalsjökull (Katla)
2025-09-07 02:02
M-0.6
3.8
Other areas
2025-09-06 15:40
M1.2
3.0
Other areas
2025-09-04 11:15
–
3.2
Other areas
2025-09-04 11:15
M2.0
1.7
Other areas
2025-07-21 03:44
–
0.1
Other areas
2025-07-21 02:08
M0.8
1.1
Other areas
2025-07-20 22:12
M0.1
1.1
Other areas
2025-07-13 11:05
M1.2
5.2
Other areas
System journal
Automatic snapshots and media coverage, in chronological order. Subscribe: RSS · ntfy skjalftar-eyjafjallajokull
2026-09-04 13:50:05 UTC
In the last 24 hours, 3 earthquakes were measured at the Eyjafjallajökull central volcano, which is well above the weekly average of 1 earthquake per day. Activity is therefore increasing, but is still within what is normal for this area. The largest earthquake in the last 48 hours was M1.2, and the cumulative moment magnitude of the earthquakes was Mw 1.3. GNSS measurements show that the land is subsiding by ~59 mm/year. The seismic activity is mostly diffuse background activity rather than swarms and is most similar to a period around July 18, 2026. These are automatic preliminary results. Further information, maps, and trends can be found lower on the page.
2026-08-30 15:30:06 UTC
In the last 24 hours, three earthquakes were recorded in the Eyjafjallajökull volcanic system, a central volcano under the glacier of the same name, with activity now increasing above the usual background level for this area. The increase is characterized by distributed background activity rather than swarms and most closely resembles the period around October 30, 2024. GNSS data from station STE2 indicates subsidence of approximately 72 mm/year, and the cumulative magnitude over the last 48 hours is Mw 1.0. These figures are automatic preliminary results, and further details are available below.
2026-08-17 01:05:05 UTC
Over the last 24 hours, 4 earthquakes were detected in Eyjafjallajökull, a central volcano under the glacier of the same name, with seismic activity increasing as the last 24 hours are well above the weekly average of 2 earthquakes per day. This activity is, however, within what is considered normal for this area and is characterized by scattered background activity rather than swarms, with a cumulative magnitude of Mw 1.2 over the last 48 hours and the largest earthquake measuring M0.9. Geodetic measurements show land subsiding by approximately 53 mm/year according to GNSS data that is a few weeks old. This activity most closely resembles the period around April 12, 2025, as a historical analogue, but it should be noted that these results are automatic preliminary findings where depth is unreliable.
2026-08-15 11:55:04 UTC
Over the last 24 hours, activity in Eyjafjallajökull, a stratovolcano beneath the glacier of the same name, has been slightly higher than usual for this area with four earthquakes, which is well above the weekly rate. This represents scattered background activity rather than swarms, as 97% of events over the last seven days were independent, with the largest earthquake in the last 48 hours measuring magnitude 0.8 and the cumulative moment magnitude being 1.1. Geodetic measurements show land subsidence of approximately 50 mm per year according to several-week-old data, and the current activity most closely resembles the period around February 21, 2026. Please note that these are automatic preliminary results with unreliable depths, and further data and maps can be found lower on the page.
2026-08-15 05:05:04 UTC
Over the last 24 hours, 4 earthquakes were detected in Eyjafjallajökull, a central volcano under the glacier of the same name, indicating that activity is increasing and somewhat higher than usual for this area. This represents scattered background activity rather than swarms, as 96% of events over the last 7 days were independent, with the largest earthquake in the last 48 hours measuring magnitude 2.2 (Mw) and the cumulative moment magnitude for the same period also being 2.2. Geodetic measurements show land subsidence of approximately 50 mm per year based on GNSS data that is a few weeks old, and the current activity most closely resembles the period around February 21, 2026, as a historical analogue. Please note that these are automatic preliminary results with unreliable depths, but further data and maps are available below on the page.
2026-08-14 20:15:04 UTC
Over the last 24 hours, 3 earthquakes were detected under Eyjafjallajökull, a central volcano under the glacier of the same name, indicating that activity is increasing as the last 24 hours are well above the weekly rate. This seismic activity is, however, within what is normal for this area, consisting of scattered background activity rather than swarms, with 95% of events over the last 7 days being independent. The largest earthquake in the last 48 hours was magnitude M2.2, and the cumulative moment magnitude for the same period was Mw 2.2, while geodetic measurements show land subsiding at approximately 52 mm per year according to GNSS data that is a few weeks old. The current activity most closely resembles the period around 20 February 2026 as a historical analogue, but it should be noted that these are automatic preliminary results where depth is unreliable. Maps and further details on this development can be found below on the page.
2026-07-20 00:00:06 UTC
Over the last 24 hours, seismic activity in Eyjafjallajökull, a central volcano under the glacier of the same name, has been increasing and is currently measured somewhat higher than usual for this area. A total of 4 earthquakes were detected in the last 24 hours, which is well above the weekly rate, with the activity characterized by scattered background activity rather than swarms as 83% of events over the last 7 days were independent. The largest earthquake in the last 48 hours was magnitude M2.1 and the cumulative magnitude for that period was Mw 2.2, while no ground deformation is detected as GNSS data show land subsidence of approximately 25 mm per year. This activity most closely resembles the period around April 12, 2025, but it should be noted that these results are automatic preliminary findings where depth is unreliable. Maps and further details on this development are available below.
2026-07-19 20:05:03 UTC
Over the last 24 hours, 4 earthquakes have been detected under Eyjafjallajökull, a central volcano under the glacier of the same name, indicating that activity is increasing and is somewhat higher than usual for this area. This increase manifests as diffuse background activity rather than swarms, with 83% of events over the last 7 days being independent background events, and the activity most closely resembles the period around April 12, 2025 as a historical analogue. The largest earthquake in the last 48 hours was magnitude M2.1 and the cumulative seismic moment for that period was Mw 2.2, while GNSS measurements show land subsiding by approximately 25 mm per year. It should be noted that the earthquake results are automatic preliminary results with unreliable depths, but further data and maps can be found lower on this page.
Repeated × 2 since 2026-07-18 06:25:05 — last 2026-07-18 19:25:04
Over the last 24 hours, 3 earthquakes were detected in Eyjafjallajökull, a central volcano under the glacier of the same name, indicating increasing activity and slightly more than usual for this area where the average rate is 0.3 earthquakes per day. This activity, which consists mostly of scattered background activity (83% independent events) rather than swarms, most closely resembles the period around July 8, 2025, when 10 earthquakes were detected. The largest earthquake in the last 48 hours was magnitude M1.2 and the cumulative moment magnitude in the area was Mw 1.3, while GNSS measurements show land subsiding by approximately 24 mm per year. Please note that these results are automatic preliminary results with unreliable depths, but further data and maps can be found lower on this page.
2026-06-20 04:15:04 UTC
In the last 24 hours, four earthquakes were recorded in the Eyjafjallajökull system, a central volcano under the glacier of the same name, with activity increasing above the usual background level for this area. The increase is mostly due to short-lived swarms rather than distributed background seismicity, as frequency now exceeds the average of 0.3 earthquakes per day. The cumulative magnitude of the largest events in the past 48 hours was Mw 1.1, and GNSS data at STE2 indicates subsidence of approximately 12 mm/year. These automatic preliminary results resemble the period around July 8, 2025, and further details are available below.
Repeated × 2 since 2026-06-15 23:25:03 — last 2026-06-19 21:35:04
In the last 24 hours, three earthquakes were recorded at Eyjafjallajökull, a central volcano under the glacier of the same name, with activity increasing but remaining normal for this area. The increase is mostly due to short-lived swarms rather than distributed background activity and most closely resembles the period around July 8, 2025. The cumulative magnitude over the last 48 hours was Mw 1.0, and these are automatic preliminary results. Further details on trends and maps are available below.
2026-06-15 19:40:05 UTC
In the last 24 hours, five earthquakes were recorded in the Eyjafjallajökull volcanic system, a central volcano beneath the glacier of the same name, with activity increasing above the usual background level for this area. The increase is mainly due to short-lived swarms rather than distributed background seismicity, as the β-value is 4.2 and earthquake frequency is well above average. The largest event was M1.1 and the cumulative moment over the past 48 hours is Mw 1.3; these are automatic preliminary results. Activity most closely resembles the period around July 8, 2025, and further details are available below.
2026-06-15 15:10:05 UTC
In the last 24 hours, six earthquakes were recorded at Eyjafjallajökull, indicating higher than usual activity for this area with the increase consisting mostly of short-lived swarms. The largest event was M1.1 and the cumulative magnitude over the past 48 hours is Mw 1.3, with current activity most similar to the period around July 8, 2025. These figures are automatic preliminary results, and further details on trends are available below.
2026-06-15 12:45:05 UTC
In the last 24 hours, five earthquakes were recorded in the Eyjafjallajökull system, a central volcano beneath the glacier of the same name, where activity is increasing but remains normal for this area. The increase is mostly due to short-lived swarms rather than distributed background activity, although the frequency is now well above the weekly average. The largest earthquake in the past 48 hours was M1.1 and the cumulative magnitude for the period is Mw 1.3. These automatic preliminary results most closely resemble an activity period around July 8, 2025, and further data are available below.
2026-06-12 10:10:08 UTC
In the last 24 hours, three earthquakes were recorded in the Eyjafjallajökull system, a central volcano under the glacier of the same name, with activity similar to the past week but higher than usual for this area. The increase consists mainly of distributed background activity rather than swarms and most closely resembles the period around April 8, 2025. The cumulative magnitude of the largest events in the last 48 hours was Mw 1.3, with a b-value of 2.7. Results are automatic preliminary results, and further data can be found below on the page.
2026-06-08 21:40:04 UTC
In the last 24 hours, five earthquakes were recorded in the Eyjafjallajökull volcanic system, a central volcano beneath the glacier of the same name, with activity now increasing and above normal for this area. This reflects distributed background activity rather than swarms, with the largest event at Mw 2.2 and a β-value of 4.2. The activity most closely resembles the period around April 8, 2025, though results are automatic preliminary findings. Further details on trends and maps are available below.
Repeated × 2 since 2026-06-08 13:20:04 — last 2026-06-08 19:20:04
In the last 24 hours, seven earthquakes were recorded in the Eyjafjallajökull volcanic system, a central volcano beneath the glacier of the same name, with activity now increasing and above normal levels for this area. The increase is primarily due to distributed background activity rather than swarms, with the largest event at magnitude M2.2 and a cumulative moment of Mw 2.2 over the past 48 hours. Activity most closely resembles the period around April 8, 2025, though these figures are automatic preliminary results. Further details on trends and ground deformation are available below.
What do the numbers mean — and what should I do?
β (swarm signal): how high activity is versus the area's 2-year average. β above 2 means an ongoing swarm. It measures activity, not a forecast of a large quake.
Cumulative moment (Mw): the combined energy of the quakes in the period. Uplift (GNSS): whether the ground is rising or sinking, mm per year — the data are a few weeks old. Some systems (e.g. Svartsengi) deform in steps during eruption cycles rather than at a steady annual rate.
Swarm character is computed for a whole volcanic belt, not a single system — it describes the belt, not necessarily this one system.
What should I do? This is automatic monitoring for information — not an official warning. Follow official information from the Icelandic Met Office and Civil Protection (112).