M4.9 Earthquake in the Mariana Islands region — September 26, 2024
2024-09-26 08:33:10 UTC (2024-09-26) · approx. 6:33 PM UTC+10 local
On September 26, 2024 at 08:33 UTC, a magnitude 4.9 intermediate depth earthquake struck in the Mariana Islands region, at a depth of 87.9 km and coordinates 19.0042°, 146.5138°. This earthquake was detected by 125 seismic stations with good 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
146.5138°E
Technical Information
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Common Questions
How strong was the magnitude 4.9 earthquake in the Mariana Islands region?
The magnitude 4.9 earthquake that struck in the Mariana Islands region on September 26, 2024 at 08:33 UTC had a depth of 87.9 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 19.0042°, 146.5138°, which is in the Mariana Islands region.
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: us7000ngij). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, September 26, 2024). M4.9 Earthquake in the Mariana Islands region — September 26, 2024. Retrieved December 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000ngij/