Kolbeinseyjarhryggur

No particular signs of unrest in the last 24 hours — 1 earthquake recorded, within the system's normal range.

Submarine ridge north of Iceland — the continuation of the Northern Volcanic Zone and Tjörnes Fracture Zone onto the Mid-Atlantic Ridge. Frequent seismicity and submarine volcanism; the islet Kolbeinsey sits on the ridge. (overview — more at vedur.is) · circle on the map = rough outline of the system (radius).

Over the last 24 hours, activity has been increasing on the Kolbeinsey Ridge, an underwater ridge north of Iceland, with activity levels measuring somewhat higher than usual for this area. The seismic activity on the ridge, where the island of Kolbeinsey is located, is currently characterized by scattered background activity rather than earthquake swarms, with the largest earthquake in the last 48 hours measuring magnitude 1.8 and the cumulative seismic moment for that period being 2.0 Mw. This activity most closely resembles the period around March 19, 1997, although it must be noted that these are automatic preliminary results where depth measurements are unreliable. Further details and development maps can be found lower on the page.

Over the last 24 hours, 4 earthquakes were detected on the Kolbeinsey Ridge, an underwater ridge north of Iceland, which represents slightly more activity than usual for this area where the average is typically 0.2 earthquakes per day. The activity is increasing compared to the weekly rate and consists mostly of scattered background activity rather than swarms, with similar activity previously observed around March 19, 1997. The largest earthquake in the last 48 hours was magnitude 1.8 and the cumulative moment magnitude in the area was Mw 2.0. Please note that these are automatic preliminary results with unreliable depths, and further data and maps can be found lower on the page.

Over the last 24 hours, 3 earthquakes were detected on the Kolbeinsey Ridge, an underwater ridge north of Iceland, and this seismic activity is within what is considered normal for this area. This represents isolated activity with too few events to evaluate its trend, characterized by scattered background activity rather than swarms, as 91% of events over the last 7 days were independent. The largest earthquake in the last 48 hours was magnitude 1.8 and the cumulative moment magnitude in the area was 1.9 Mw, although these results are automatic preliminary results with unreliable depth. This activity most closely resembles a period around February 13, 2026, when 3 earthquakes were detected, and further details and maps can be found lower on this page.

Over the last 24 hours, only 1 earthquake was detected on the Kolbeinsey Ridge, an underwater ridge north of Iceland, and this isolated activity is within what is considered normal for this area. The largest earthquake in the last 48 hours was magnitude 3.3, with a cumulative moment magnitude of Mw 3.3, though these results are automatic preliminary findings where depth is unreliable. The activity in the area is currently characterized by scattered background activity rather than swarms, closely resembling the period around May 26, 2025, when two earthquakes were recorded. Maps and further data on the development of the seismic activity can be found below on this page.

Over the last 24 hours, 2 earthquakes were detected on the Kolbeinsey Ridge, an underwater ridge north of Iceland, and this seismic activity is within what is considered normal for this area. The largest earthquake in the last 48 hours was magnitude 3.3, with the cumulative moment magnitude for that period also at 3.3, though these are automatic preliminary results where depth is unreliable. This represents scattered background activity rather than swarms, as 81% of events over the last seven days were independent background events and 19% were associated with swarms or aftershocks, with the activity most closely resembling the period around May 26, 2025. Further details and maps can be found lower on the page.

Over the last 24 hours, seismic activity on the Kolbeinsey Ridge, an underwater ridge north of Iceland, has been increasing and is somewhat higher than usual for this area. There were 3 earthquakes detected in the last 24 hours, which is well above the weekly rate, with the largest event measuring magnitude 2.7 and the cumulative seismic moment over the last 48 hours reaching magnitude 3.0. This activity consists of scattered background seismicity rather than swarms, as 77% of the events over the last 7 days were independent, and the development most closely resembles the period around July 10, 2025. All results are automatic preliminary data with unreliable depth estimates, but further details and maps are available below on the page.

Over the last 24 hours, seismic activity has been increasing on the Kolbeinsey Ridge, an underwater ridge north of Iceland, and is measuring somewhat higher than usual for this area. This is a scattered background activity rather than swarms, with independent events accounting for 77% and swarms or aftershocks for 23%, closely resembling the period around July 10, 2025. The largest earthquake in the last 48 hours was magnitude 2.7, with a cumulative moment magnitude of 3.0 Mw, though these are automatic preliminary results where depth is unreliable. Maps and further details on this development are available below.

Over the last 24 hours, seismic activity has been somewhat higher than usual on the Kolbeinsey Ridge, an underwater ridge north of Iceland, with 6 earthquakes detected which is well above the weekly average of about 1 earthquake per day. This represents scattered background activity rather than swarms, as 78% of the events over the last 7 days were independent, and the activity most closely resembles the period around July 10, 2025, when 7 earthquakes were recorded. The largest earthquake in the last 48 hours was magnitude 2.7 and the cumulative moment magnitude in the area was 3.0 Mw, although it should be noted that these are automatic preliminary results where depth is unreliable. Maps and further details on the development of the activity can be found lower on the page.

Over the last 24 hours, seismic activity on the Kolbeinsey Ridge, an underwater ridge north of Iceland, has been increasing and is measured slightly higher than usual for this area. A total of 7 earthquakes were detected in the last 24 hours, which is well above the weekly rate, with the largest measuring magnitude 2.7 and the cumulative moment magnitude of the area over the last two days being 3.0. This represents scattered background activity rather than earthquake swarms, as 84% of the events over the last seven days were independent background events, with the development most closely resembling the period around July 10, 2025. It should be noted that these are automatic preliminary results where the depth of the earthquakes is unreliable.

Over the last 24 hours, 3 earthquakes were detected on the Kolbeinsey Ridge, an underwater ridge north of Iceland, which represents slightly more activity than usual for this area where the average is typically 0.2 earthquakes per day. The activity is increasing compared to the weekly rate and consists mostly of scattered background activity rather than swarms, with the largest earthquake in the last 48 hours measuring magnitude 2.9 and the cumulative moment magnitude at 3.0 Mw. This activity most closely resembles the period around April 1, 2025, when 4 earthquakes were recorded, although it should be noted that these are automatic preliminary results with unreliable depth estimates. Maps and further data on the development can be found lower on the page.

Over the last 24 hours, only 1 earthquake was detected on the Kolbeinsey Ridge, an underwater ridge north of Iceland, with activity remaining similar to the past week. This earthquake activity is within what is considered normal for this area, with the largest earthquake in the last 48 hours measuring magnitude 3.1 and the cumulative moment magnitude reaching 3.2. The activity consists of scattered background activity rather than swarms, as 78% of events over the last seven days were independent background events, most closely resembling the period around July 10, 2025. These results are automatic preliminary findings where depth is unreliable, but further details and maps can be found below on this page.

Over the last 24 hours, activity has been increasing on the Kolbeinsey Ridge, an underwater ridge north of Iceland, with activity measuring somewhat higher than usual for this area. Earthquakes in the area over the last seven days are mostly classified as scattered background activity rather than swarms, with 83% being independent events and 17% related to swarms or aftershocks. The largest earthquake in the last 48 hours was M3.1 and the cumulative magnitude for that period was Mw 3.2, although these results are automatic preliminary results and their depth is unreliable. This increased activity most closely resembles the period around July 10, 2025 as a historical analogue, and further information and maps can be found lower on this page.

Over the last 24 hours, there has been slightly more seismic activity than usual on the Kolbeinsey Ridge, a submarine ridge north of Iceland, with activity currently increasing compared to the weekly average. A total of 6 earthquakes were detected in the area during the last 24 hours, characterized as scattered background activity rather than concentrated swarms, with the largest event measuring magnitude 3.1 (M3.1) and the cumulative seismic moment over the last 48 hours reaching 3.2 (Mw 3.2). This increase has a historical analogue most closely resembling the period around July 10, 2025, when 7 earthquakes were recorded. These results are automatic preliminary findings where the depth of the earthquakes is unreliable, but more detailed maps and data on the development can be found further down the page.

Over the last 24 hours, 4 earthquakes were detected on the Kolbeinsey Ridge, an underwater ridge north of Iceland, which represents slightly more activity than usual for this area where the average is typically 0.2 earthquakes per day. The activity is increasing compared to the weekly rate and is characterized by diffuse background activity rather than swarms, with about 81% of events over the last 7 days being independent. The largest earthquake in the last 48 hours was magnitude 3.1 (Mw), with the cumulative moment magnitude for the period also at 3.1. This activity most closely resembles the period around October 8, 2024, but it should be noted that these are automatic preliminary results where depth is unreliable. Maps and further data on the development can be found lower on this page.

Over the last 24 hours, only one earthquake was detected on the Kolbeinsey Ridge, a submarine ridge north of Iceland, and the seismic activity is within what is considered normal for this area. The largest earthquake in the last 48 hours was magnitude 3.1 (M3.1) and the cumulative moment magnitude for the same period was 3.1 (Mw), with these being automatic preliminary results where depth is unreliable. This represents scattered background activity rather than swarms, as 81% of events over the last seven days were independent and 19% were related to swarms or aftershocks. This isolated activity most closely resembles the period around May 5, 2026, and there are too few earthquakes to further evaluate the trend, but more detailed information and maps can be found below.