4.9

M4.9 Earthquake north of SvalbardNovember 27, 2021

2021-11-27 22:49:03 UTC (2021-11-27) · approx. 11:49 PM UTC+1 local

MagnitudeM4.9(mb)
Time22:49 UTC11:49 PM UTC+1
Depth10.0 kmshallow crustal
Coordinates85.471°, 13.315°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 27, 2021 at 22:49 UTC, a magnitude 4.9 shallow crustal earthquake struck north of Svalbard, at a depth of 10.0 km and coordinates 85.4705°, 13.3148°.

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.

Map showing earthquake epicenter at 85.47°, 13.31°

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
85.4705°N
13.3148°E

Technical Information

Event ID
us7000fxkf
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Azimuthal Gap
46.0°
Min Station Distance
6.599°
RMS Residual
0.56 sec
Last Updated
2022-02-05 23:04:22 UTC

Common Questions

How strong was the magnitude 4.9 earthquake north of Svalbard?

The magnitude 4.9 earthquake that struck north of Svalbard on November 27, 2021 at 22:49 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 85.4705°, 13.3148°, which is north of Svalbard.

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.

Authoritative source: USGS event page (event ID: us7000fxkf). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, November 27, 2021). M4.9 Earthquake north of SvalbardNovember 27, 2021. Retrieved February 5, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000fxkf/