4.4

M4.4 Earthquake 74 km WSW of Palana, Russia — December 20, 2020

2020-12-20 19:47:41 UTC (2020-12-20) · approx. 6:47 AM UTC+11 local

MagnitudeM4.4(mb)
Time19:47 UTC≈ 6:47 AM UTC+11
Depth12.5 kmshallow crustal
Coordinates58.755°, 158.824°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 20, 2020 at 19:47 UTC, a magnitude 4.4 shallow crustal earthquake struck 74 km WSW of Palana, Russia, at a depth of 12.5 km and coordinates 58.7550°, 158.8242°.

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 58.76°, 158.82°

Earthquake Details

Magnitude
4.4 mb
Depth
12.5 km
shallow crustal
Location
58.7550°N
158.8242°E

Technical Information

Event ID
us7000csr9
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Azimuthal Gap
114.0°
Min Station Distance
4.226°
RMS Residual
1.14 sec
Last Updated
2021-02-27 23:26:38 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Palana, Russia?

The magnitude 4.4 earthquake that struck 74 km WSW of Palana, Russia on December 20, 2020 at 19:47 UTC had a depth of 12.5 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: us7000csr9). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, December 20, 2020). M4.4 Earthquake 74 km WSW of Palana, Russia — December 20, 2020. Retrieved February 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000csr9/