4.4

M4.4 Earthquake near Kuril IslandsDecember 26, 2021

2021-12-26 22:15:39 UTC (2021-12-26) · approx. 8:15 AM UTC+10 local

MagnitudeM4.4(mb)
Time22:15 UTC8:15 AM UTC+10
Depth75.3 kmintermediate depth
Coordinates47.332°, 152.885°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 26, 2021 at 22:15 UTC, a magnitude 4.4 intermediate depth earthquake struck near Kuril Islands, at a depth of 75.3 km and coordinates 47.3322°, 152.8847°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 47.33°, 152.88°

Earthquake Details

Magnitude
4.4 mb
Depth
75.3 km
intermediate depth
Location
47.3322°N
152.8847°E

Technical Information

Event ID
us7000g9mt
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Azimuthal Gap
138.0°
Min Station Distance
6.554°
RMS Residual
0.44 sec
Last Updated
2022-03-05 23:11:04 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Kuril Islands?

The magnitude 4.4 earthquake that struck near Kuril Islands on December 26, 2021 at 22:15 UTC had a depth of 75.3 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000g9mt). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, December 26, 2021). M4.4 Earthquake near Kuril IslandsDecember 26, 2021. Retrieved March 5, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000g9mt/