4.0

M4.0 Earthquake 181 km W of Merizo Village, GuamAugust 26, 2024

2024-08-26 18:43:33 UTC (2024-08-26) · approx. 4:43 AM UTC+10 local

MagnitudeM4.0(mb)
Time18:43 UTC4:43 AM UTC+10
Depth198.9 kmintermediate depth
Coordinates12.975°, 143.025°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 26, 2024 at 18:43 UTC, a magnitude 4.0 intermediate depth earthquake struck 181 km W of Merizo Village, Guam, at a depth of 198.9 km and coordinates 12.9751°, 143.0254°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 12.98°, 143.03°

Earthquake Details

Magnitude
4.0 mb
Depth
198.9 km
intermediate depth
Location
12.9751°N
143.0254°E

Technical Information

Event ID
us7000ngcm
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
25
Azimuthal Gap
95.0°
Min Station Distance
3.499°
RMS Residual
0.56 sec
Last Updated
2024-11-09 21:19:18 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Merizo Village, Guam?

The magnitude 4.0 earthquake that struck 181 km W of Merizo Village, Guam on August 26, 2024 at 18:43 UTC had a depth of 198.9 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 4.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.0 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000ngcm). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, August 26, 2024). M4.0 Earthquake 181 km W of Merizo Village, GuamAugust 26, 2024. Retrieved November 9, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000ngcm/