Öræfajökull flank zone
Zone — systems within: Öræfajökull · Esjufjöll
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 · count moment
Depth (0 km at top).
Not enough depth data.
Magnitude distribution
Earthquakes
2
Largest
M0.9
M3,0+
0
Depth range
0–1 km
Earthquakes over time
Cumulative count · 2 earthquakes · total moment ≈ M0.9 · count moment
Depth (0 km at top).
Not enough depth data.
Magnitude distribution
Earthquakes
9
Largest
M1.3
M3,0+
0
Depth range
0–4 km
Earthquakes over time
Cumulative count · 9 earthquakes · total moment ≈ M1.5 · count moment
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
17
Largest
M1.3
M3,0+
0
Depth range
0–11 km
Earthquakes over time
Cumulative count · 17 earthquakes · total moment ≈ M1.6 · count moment
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
59
Largest
M2.2
M3,0+
0
Depth range
0–23 km
Earthquakes over time
Cumulative count · 59 earthquakes · total moment ≈ M2.3 · count moment
Depth (0 km at top) — shallowing in the data (2.8→1.4 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.
Earthquakes
119
Largest
M2.2
M3,0+
0
Depth range
0–23 km
Earthquakes over time
Cumulative count · 119 earthquakes · total moment ≈ M2.3 · count moment
Depth (0 km at top) — shallowing in the data (3.0→1.9 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.
Earthquakes
348
Largest
M2.9
M3,0+
0
Depth range
0–23 km
Earthquakes over time
Cumulative count · 348 earthquakes · total moment ≈ M3.0 · count moment
Depth (0 km at top) — shallowing in the data (5.0→2.9 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
562
Largest
M3.9
M3,0+
1
Depth range
0–23 km
Earthquakes over time
Cumulative count · 562 earthquakes · total moment ≈ M3.9 · count moment
Depth (0 km at top) — shallowing in the data (4.9→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
1.000
Largest
M3.9
M3.0+
3
Days with data
576
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 4.1
Magnitude distribution
<1596
1–2147
2–318
3–43
≥40
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
5.930
Largest
M3.9
M3.0+
9
Days with data
1.664
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
Magnitude distribution
<14911
1–2687
2–387
3–49
≥40
Gutenberg-Richter b ≈ 0.97 ± 0.07 (i.e. likely 0.91–1.04, M≥1.7, n=183)
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
7.380
Largest
M3.9
M3.0+
17
Days with data
2.395
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 4.4
Magnitude distribution
<15710
1–21217
2–3199
3–417
≥40
Gutenberg-Richter b ≈ 1.00 ± 0.04 (i.e. likely 0.96–1.05, M≥1.7, n=419)
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
7.758
Largest
M3.9
M3.0+
28
Days with data
2.611
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
Magnitude distribution
<15771
1–21414
2–3305
3–428
≥40
Gutenberg-Richter b ≈ 0.99 ± 0.04 (i.e. likely 0.95–1.02, M≥1.7, n=617)
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.