Chile earthquakes

M5.3 earthquake 64 km SW of Antofagasta, Chile

A magnitude 5.3 earthquake struck 64 km SW of Antofagasta, Chile on Tue, Aug 1, 1995, 11:44 AM GMT-4 (15:44 UTC), 30 km (19 mi) below the surface.

A larger quake followed: M6.0 54 km NNW of Antofagasta, Chile. This one was a foreshock.

Antofagasta forecast More in Chile

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 5.3 (Mw, moment), moderate
Magnitude from: USGS National Earthquake Information Center
Local time: Tue, Aug 1, 1995, 11:44 AM GMT-4
UTC: 1995-08-01 15:44:30 UTC
Depth: 30.2 km (18.8 mi), shallow
Epicenter: 24.124° S, 70.771° W
Region: Chile
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
5.3	Mw, moment	USGS National Earthquake Information Center	Preferred · Reviewed
5.28	Mw, moment	ISC-GEM global catalog	Final · ±0.1
5.3	Mwc, centroid moment	Global CMT project	Preliminary

What happened

The USGS’s account of the effects of this earthquake.

CENTROID, MOMENT TENSOR (HRV) Data Used: GSN L.P.B.: 29S, 37C Centroid Location: Origin Time 15:44:35.6 0.4 Lat 24.26S 0.05 Lon 71.26W 0.05 Dep 15.0 FIX Half-duration 1.0 Moment Tensor; Scale 10**16 Nm Mrr=7.20 0.29 Mtt=0.72 0.40 Mff=-7.93 0.49 Mrt=-2.14 0.93 Mrf=-7.06 1.36 Mtf=0.26 0.29 Principal Axes: (T) Val=10.44 Plg=66 Azm=121 (N) Val=0.30 Plg=10 Azm=7 (P) Val=-10.74 Plg=22 Azm=273 Best Double Couple:Mo=1.1*10**17 NP1:Strike=344 Dip=25 Slip=65 NP2:Strike=191 Dip=68 Slip=101

From the USGS event page for usp00071ah. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from: CONSTRAINED_BY_DEPTH_PHASES

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 2.3 and up: 39 in the 60 days after this one and 91 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00071ah (also filed as gcmtb080195e, gcmt19950801154430, iscgem86911). Read Sat, Oct 3, 2026, 2:43 PM UTC.