4.4

M4.4 Earthquake 54 km WNW of Houma, TongaApril 24, 2025

2025-04-24 23:02:31 UTC (2025-04-24) · approx. 11:02 AM UTC-12 local

MagnitudeM4.4(mb)
Time23:02 UTC11:02 AM UTC-12
Depth186.2 kmintermediate depth
Coordinates-20.937°, -175.763°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 24, 2025 at 23:02 UTC, a magnitude 4.4 intermediate depth earthquake struck 54 km WNW of Houma, Tonga, at a depth of 186.2 km and coordinates -20.9373°, -175.7634°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -20.94°, -175.76°

Earthquake Details

Magnitude
4.4 mb
Depth
186.2 km
intermediate depth
Location
-20.9373°N
-175.7634°E

Technical Information

Event ID
us7000py9r
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
19
Azimuthal Gap
107.0°
Min Station Distance
5.791°
RMS Residual
0.99 sec
Last Updated
2025-07-11 15:46:25 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Houma, Tonga?

The magnitude 4.4 earthquake that struck 54 km WNW of Houma, Tonga on April 24, 2025 at 23:02 UTC had a depth of 186.2 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 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000py9r). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, April 24, 2025). M4.4 Earthquake 54 km WNW of Houma, TongaApril 24, 2025. Retrieved July 11, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000py9r/