4.9

M4.9 Earthquake 121 km S of Akureyri, IcelandFebruary 22, 2022

2022-02-22 10:11:22 UTC (2022-02-22) · approx. 9:11 AM UTC-1 local

MagnitudeM4.9(mb)
Time10:11 UTC9:11 AM UTC-1
Depth10.0 kmshallow crustal
Coordinates64.605°, -17.798°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 22, 2022 at 10:11 UTC, a magnitude 4.9 shallow crustal earthquake struck 121 km S of Akureyri, Iceland, at a depth of 10.0 km and coordinates 64.6051°, -17.7978°.

Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Iceland, a region characterized by the Mid-Atlantic Ridge, where the North American and Eurasian plates diverge at 18-25 mm per year, amplified by the Iceland mantle plume. The nearest mapped fault system is the Mid-Atlantic Ridge. View all earthquakes in Iceland.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 64.61°, -17.80°

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
64.6051°N
-17.7978°E

Technical Information

Event ID
us7000gmwz
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Azimuthal Gap
74.0°
Min Station Distance
1.524°
RMS Residual
0.47 sec
Last Updated
2022-05-04 13:39:42 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Akureyri, Iceland?

The magnitude 4.9 earthquake that struck 121 km S of Akureyri, Iceland on February 22, 2022 at 10:11 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 64.6051°, -17.7978°, which is 121 km S of Akureyri, Iceland. View all earthquakes in Iceland.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.

Has Iceland had earthquakes this big before?

The largest recorded earthquake in Iceland was the M6.6 South Iceland earthquake of June 17, 2000. Today's magnitude 4.9 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000gmwz). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, February 22, 2022). M4.9 Earthquake 121 km S of Akureyri, IcelandFebruary 22, 2022. Retrieved May 4, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000gmwz/