M4.5 Earthquake in the Mariana Islands region — August 1, 2020
2020-08-01 22:36:32 UTC (2020-08-01) · approx. 8:36 AM UTC+10 local
On August 1, 2020 at 22:36 UTC, a magnitude 4.5 intermediate depth earthquake struck in the Mariana Islands region, at a depth of 85.5 km and coordinates 19.1731°, 146.1411°.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
146.1411°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake in the Mariana Islands region?
The magnitude 4.5 earthquake that struck in the Mariana Islands region on August 1, 2020 at 22:36 UTC had a depth of 85.5 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 19.1731°, 146.1411°, which is in the Mariana Islands region.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000b87n). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, August 1, 2020). M4.5 Earthquake in the Mariana Islands region — August 1, 2020. Retrieved October 10, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000b87n/