M5.4 earthquake 69 km WSW of San Antonio, Chile
A magnitude 5.4 earthquake struck 69 km WSW of San Antonio, Chile on Tue, Nov 20, 2012, 1:23 PM GMT-3 (16:23 UTC), 16 km (10 mi) below the surface.
A larger quake followed: M5.9 45 km SSW of San Antonio, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2012-11-20 16:23:24 UTC
- Depth
- 15.7 km (9.8 mi), shallow
- Epicenter
- 33.921° S, 72.254° W
- Region
- Chile
- Felt reports
- 28
- 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 |
|---|---|---|---|
| 5.4 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · 212 stations |
| 5.42 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
What happened
The USGS’s account of the effects of this earthquake.
Felt (V) at Constitucion, Litueche, Longavi and Pichilemu; (IV) at Cauquenes, Curico, Hualane, Iloca, Linares, Lolol, Navidad, Paredones, Pelarco, Pencahue, Rio Claro, Romeral, Sagrada Familia, San Clemente, Santa Cruz, Santo Domingo and Talca; (III) at Algarrobo, Cartagena, Casablanca, Chanco, Colbun, Maule, Melipilla, Parral, Pelluhue, Rancagua, San Antonio, San Fernando, Santiago and Valparaiso. Felt in many parts of central Chile.
From the USGS event page for usp000jvvx. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
28 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
How well it is located
Reviewed by a seismologist.
- Station coverage gap
- 60°
- Stations used
- 325
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 7 in the 60 days after this one and 7 in the 30 days before it.
After
- 5.158 km SW of San Antonio, Chile · 5063 days ago · 19 km deep · 14 km away · felt by 19
- 5.945 km SSW of San Antonio, Chile · 5063 days ago · 18 km deep · 36 km away · felt by 73
- 4.279 km SW of San Antonio, Chile · 5063 days ago · 35 km deep · 11 km away
- 5.250 km SW of San Antonio, Chile · 5063 days ago · 16 km deep · 24 km away · felt by 10
- 3.921 km SW of Melipilla, Chile · 5040 days ago · 59 km deep · 83 km away
- 4.621 km SW of Melipilla, Chile · 5038 days ago · 63 km deep · 79 km away · felt by 18
- 4.851 km SW of San Antonio, Chile · 5031 days ago · 12 km deep · 30 km away · felt by 10
Before
- 5.163 km SW of San Antonio, Chile · 5065 days ago · 11 km deep · 8 km away · felt by 9
- 4.2Off the coast of Valparaiso, Chile · 5065 days ago · 1 km deep · 11 km away
- 4.474 km SW of San Antonio, Chile · 5074 days ago · 38 km deep · 6 km away
- 4.868 km SW of San Antonio, Chile · 5074 days ago · 16 km deep · 9 km away · felt by 3
- 4.663 km SW of San Antonio, Chile · 5074 days ago · 13 km deep · 12 km away · felt by 5
- 4.016 km N of Cartagena, Chile · 5088 days ago · 34 km deep · 83 km away
- 4.437 km W of San Antonio, Chile · 5088 days ago · 47 km deep · 39 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000jvvx (also filed as usc000dvj3, iscgem601993233). Read Fri, Oct 2, 2026, 7:52 PM UTC.