4.4

M4.4 Earthquake 125 km E of Vallenar, ChileSeptember 25, 2024

2024-09-25 21:12:29 UTC (2024-09-25) · approx. 4:12 PM UTC-5 local

MagnitudeM4.4(mwr)
Time21:12 UTC4:12 PM UTC-5
Depth108.3 kmintermediate depth
Coordinates-28.509°, -69.484°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 25, 2024 at 21:12 UTC, a magnitude 4.4 intermediate depth earthquake struck 125 km E of Vallenar, Chile, at a depth of 108.3 km and coordinates -28.5092°, -69.4841°.

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 -28.51°, -69.48°

Earthquake Details

Magnitude
4.4 mwr
Depth
108.3 km
intermediate depth
Location
-28.5092°N
-69.4841°E

Technical Information

Event ID
us7000ngg1
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
26
Azimuthal Gap
51.0°
Min Station Distance
1.179°
RMS Residual
1.03 sec
Last Updated
2024-12-06 19:30:15 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Vallenar, Chile?

The magnitude 4.4 earthquake that struck 125 km E of Vallenar, Chile on September 25, 2024 at 21:12 UTC had a depth of 108.3 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: us7000ngg1). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, September 25, 2024). M4.4 Earthquake 125 km E of Vallenar, ChileSeptember 25, 2024. Retrieved December 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000ngg1/