M4.3 earthquake 37 km W of Valparaíso, Chile
A magnitude 4.3 earthquake struck 37 km W of Valparaíso, Chile on Sat, Mar 23, 2019, 4:02 PM GMT-3 (19:02 UTC), 24 km (15 mi) below the surface.
A larger quake followed: M5.6 86 km WSW 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
- 4.3 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-03-23 19:02:45 UTC
- Depth
- 23.5 km (14.6 mi), shallow
- Epicenter
- 33.008° S, 72.027° W
- Region
- Chile
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was V, moderate shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Reverse (thrust)
- Moment magnitude
- 4.3 Mwr
- Nodal plane 1
- Strike 22°, dip 21°, rake 117°
- Nodal plane 2
- Strike 173°, dip 72°, rake 80°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.3 km horizontally, 4.2 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 68°
- Stations used
- 62
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.171 km NNW of Valparaíso, Chile · 2745 days ago · 41 km deep · 59 km away
- 5.686 km WSW of San Antonio, Chile · 2736 days ago · 10 km deep · 95 km away · felt by 9
- 4.393 km W of San Antonio, Chile · 2736 days ago · 10 km deep · 98 km away · felt by 1
- 4.611 km NNW of La Ligua, Chile · 2734 days ago · 37 km deep · 99 km away
- 3.848 km WNW of Valparaíso, Chile · 2734 days ago · 19 km deep · 13 km away
- 4.452 km WNW of Cartagena, Chile · 2734 days ago · 10 km deep · 46 km away · felt by 1
- 4.684 km WNW of La Ligua, Chile · 2715 days ago · 22 km deep · 90 km away · felt by 7
- 4.457 km NNW of Valparaíso, Chile · 2713 days ago · 18 km deep · 47 km away · felt by 1
Before
- 4.027 km NNW of Melipilla, Chile · 2770 days ago · 62 km deep · 85 km away · felt by 3
- 5.592 km W of San Antonio, Chile · 2771 days ago · 10 km deep · 91 km away · felt by 16
- 4.586 km W of San Antonio, Chile · 2772 days ago · 10 km deep · 90 km away
- 4.117 km SW of Valparaíso, Chile · 2772 days ago · 35 km deep · 28 km away · felt by 1
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000jkrk. Read Sat, Oct 3, 2026, 5:06 AM UTC.