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, 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.