M4.9 Earthquake in the Mariana Islands region — April 4, 2024
2024-04-04 19:29:08 UTC (2024-04-04) · approx. 5:29 AM UTC+10 local
Felt by 2 people across nearby locations.
On April 4, 2024 at 19:29 UTC, a magnitude 4.9 shallow crustal earthquake struck in the Mariana Islands region, at a depth of 35.0 km and coordinates 21.1270°, 145.6295°. This earthquake was detected by 71 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.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 2 citizen responses 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
145.6295°E
Technical Information
Nearby Earthquakes (Last 7 Days)
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 April 4, 2024 at 19:29 UTC had a depth of 35.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 21.1270°, 145.6295°, 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: us7000m9yk). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, April 4, 2024). M4.9 Earthquake in the Mariana Islands region — April 4, 2024. Retrieved June 12, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000m9yk/