M5.1 Earthquake in the Mariana Islands region — September 28, 2022
2022-09-28 17:35:11 UTC (2022-09-28) · approx. 3:35 AM UTC+10 local
Felt by 1 person across nearby locations.
On September 28, 2022 at 17:35 UTC, a magnitude 5.1 shallow crustal earthquake struck in the Mariana Islands region, at a depth of 26.3 km and coordinates 16.9794°, 147.0679°. This earthquake was detected by 123 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 400, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.1 releases seismic energy equivalent to roughly 674 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.0 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
147.0679°E
Technical Information
Common Questions
How strong was the magnitude 5.1 earthquake in the Mariana Islands region?
The magnitude 5.1 earthquake that struck in the Mariana Islands region on September 28, 2022 at 17:35 UTC had a depth of 26.3 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 16.9794°, 147.0679°, which is in the Mariana Islands region.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.1 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000ip1i). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, September 28, 2022). M5.1 Earthquake in the Mariana Islands region — September 28, 2022. Retrieved December 3, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000ip1i/