4.6

M4.6 Earthquake 23 km NNW of Dededo Village, Guam — December 19, 2024

2024-12-19 19:31:00 UTC (2024-12-19) · approx. 5:31 AM UTC+10 local

Felt by 6 people across nearby locations.

MagnitudeM4.6(mb)
Time19:31 UTC≈ 5:31 AM UTC+10
Depth108.4 kmintermediate depth
Coordinates13.693°, 144.720°
Felt by6DYFI responses
Status✓ Reviewed by USGS

On December 19, 2024 at 19:31 UTC, a magnitude 4.6 intermediate depth earthquake struck 23 km NNW of Dededo Village, Guam, at a depth of 108.4 km and coordinates 13.6927°, 144.7199°. This earthquake was detected by 43 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 328, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 13.69°, 144.72°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 6 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 M4.6 earthquake near 23 km NNW of Dededo Village, Guam

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

Earthquake Details

Magnitude
4.6 mb
Depth
108.4 km
intermediate depth
Location
13.6927°N
144.7199°E
Felt Reports
6
DYFI responses
Community Intensity
4.0
CDI from reports

Technical Information

Event ID
us7000p051
Event Type
earthquake
Status
✓ Reviewed
Significance
328
Stations Used
43
Azimuthal Gap
69.0°
Min Station Distance
0.177°
RMS Residual
0.56 sec
Last Updated
2025-02-27 17:30:53 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Dededo Village, Guam?

The magnitude 4.6 earthquake that struck 23 km NNW of Dededo Village, Guam on December 19, 2024 at 19:31 UTC had a depth of 108.4 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 13.6927°, 144.7199°, which is 23 km NNW of Dededo Village, Guam.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.

Actions

View on USGSDid You Feel It?

Authoritative source: USGS event page (event ID: us7000p051). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, December 19, 2024). M4.6 Earthquake 23 km NNW of Dededo Village, Guam — December 19, 2024. Retrieved February 27, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000p051/