4.9

M4.9 Earthquake 210 km WSW of Olonkinbyen, Svalbard and Jan MayenSeptember 13, 2023

2023-09-13 00:06:28 UTC (2023-09-13) · approx. 11:06 PM UTC-1 local

MagnitudeM4.9(mb)
Time00:06 UTC11:06 PM UTC-1
Depth10.0 kmshallow crustal
Coordinates70.545°, -14.318°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 13, 2023 at 00:06 UTC, a magnitude 4.9 shallow crustal earthquake struck 210 km WSW of Olonkinbyen, Svalbard and Jan Mayen, at a depth of 10.0 km and coordinates 70.5451°, -14.3183°. This earthquake was detected by 164 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.

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 70.55°, -14.32°

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
70.5451°N
-14.3183°E

Technical Information

Event ID
us7000kveb
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
164
Azimuthal Gap
49.0°
Min Station Distance
6.403°
RMS Residual
0.79 sec
Last Updated
2023-11-18 22:29:33 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Olonkinbyen, Svalbard and Jan Mayen?

The magnitude 4.9 earthquake that struck 210 km WSW of Olonkinbyen, Svalbard and Jan Mayen on September 13, 2023 at 00:06 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 70.5451°, -14.3183°, which is 210 km WSW of Olonkinbyen, Svalbard and Jan Mayen.

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: us7000kveb). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, September 13, 2023). M4.9 Earthquake 210 km WSW of Olonkinbyen, Svalbard and Jan MayenSeptember 13, 2023. Retrieved November 18, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kveb/