5.1

M5.1 Earthquake 172 km SW of Merizo Village, Guam — September 12, 2024

2024-09-12 06:20:23 UTC (2024-09-12) · approx. 4:20 PM UTC+10 local

Felt by 3 people across nearby locations.

MagnitudeM5.1(mb)
Time06:20 UTC≈ 4:20 PM UTC+10
Depth10.0 kmshallow crustal
Coordinates12.013°, 143.730°
Felt by3DYFI responses
Status✓ Reviewed by USGS

On September 12, 2024 at 06:20 UTC, a magnitude 5.1 shallow crustal earthquake struck 172 km SW of Merizo Village, Guam, at a depth of 10.0 km and coordinates 12.0127°, 143.7299°. This earthquake was detected by 73 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 401, 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.

Map showing earthquake epicenter at 12.01°, 143.73°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 3 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M5.1 earthquake near 172 km SW of Merizo Village, Guam

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
5.1 mb
Depth
10.0 km
shallow crustal
Location
12.0127°N
143.7299°E
Felt Reports
3
DYFI responses
Community Intensity
2.4
CDI from reports

Technical Information

Event ID
us7000nd8k
Event Type
earthquake
Status
✓ Reviewed
Significance
401
Stations Used
73
Azimuthal Gap
86.0°
Min Station Distance
3.777°
RMS Residual
0.50 sec
Last Updated
2025-09-12 06:30:38 UTC

Common Questions

How strong was the magnitude 5.1 earthquake near Merizo Village, Guam?

The magnitude 5.1 earthquake that struck 172 km SW of Merizo Village, Guam on September 12, 2024 at 06:20 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at 12.0127°, 143.7299°, which is 172 km SW of Merizo Village, Guam.

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

View on USGSDid You Feel It?

Authoritative source: USGS event page (event ID: us7000nd8k). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, September 12, 2024). M5.1 Earthquake 172 km SW of Merizo Village, Guam — September 12, 2024. Retrieved September 12, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000nd8k/