M4.9 Earthquake 253 km SW of Longyearbyen, Svalbard and Jan Mayen — July 9, 2024
2024-07-09 22:21:23 UTC (2024-07-09) · approx. 11:21 PM UTC+1 local
On July 9, 2024 at 22:21 UTC, a magnitude 4.9 shallow crustal earthquake struck 253 km SW of Longyearbyen, Svalbard and Jan Mayen, at a depth of 10.0 km and coordinates 76.7521°, 7.6355°. This earthquake was detected by 45 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.
Earthquake Details
7.6355°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Longyearbyen, Svalbard and Jan Mayen?
The magnitude 4.9 earthquake that struck 253 km SW of Longyearbyen, Svalbard and Jan Mayen on July 9, 2024 at 22:21 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 76.7521°, 7.6355°, which is 253 km SW of Longyearbyen, 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.
Actions
Authoritative source: USGS event page (event ID: us7000mzud). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, July 9, 2024). M4.9 Earthquake 253 km SW of Longyearbyen, Svalbard and Jan Mayen — July 9, 2024. Retrieved September 20, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000mzud/