4.3

M4.3 Earthquake 44 km NE of Yigo Village, GuamAugust 7, 2025

2025-08-07 20:41:55 UTC (2025-08-07) · approx. 6:41 AM UTC+10 local

MagnitudeM4.3(mb)
Time20:41 UTC6:41 AM UTC+10
Depth107.6 kmintermediate depth
Coordinates13.868°, 145.119°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 7, 2025 at 20:41 UTC, a magnitude 4.3 intermediate depth earthquake struck 44 km NE of Yigo Village, Guam, at a depth of 107.6 km and coordinates 13.8676°, 145.1190°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 13.87°, 145.12°

Earthquake Details

Magnitude
4.3 mb
Depth
107.6 km
intermediate depth
Location
13.8676°N
145.1190°E

Technical Information

Event ID
us7000qt2q
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
27
Azimuthal Gap
104.0°
Min Station Distance
0.369°
RMS Residual
0.78 sec
Last Updated
2025-10-25 13:40:31 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Yigo Village, Guam?

The magnitude 4.3 earthquake that struck 44 km NE of Yigo Village, Guam on August 7, 2025 at 20:41 UTC had a depth of 107.6 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000qt2q). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, August 7, 2025). M4.3 Earthquake 44 km NE of Yigo Village, GuamAugust 7, 2025. Retrieved October 25, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qt2q/