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M4.3 earthquake 49 km WSW of Santo Domingo, Valparaiso, Chile

A magnitude 4.3 earthquake struck 49 km WSW of Santo Domingo, Valparaiso, Chile at 04:07 local time (07:07 UTC) on 24 Sept 2026, at a depth of 31 km, according to USGS and GFZ.

Reported by 2 agencies

Data: USGS, GFZ · updated 2026-09-24 09:02 UTC · reviewed

Magnitude
4.3light
body-wave magnitude (mb)
Depth
31.4 km
Status
Reviewed
Origin time
2026-09-24 07:07:05 UTC
Local: 24 Sept 2026, 04:07:05 (America/Santiago)
Epicentre
33.829° S, 72.106° W

Circles show this event and others within 30 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map

Nearby places

Distance and estimated shaking at nearby places
PlaceDistanceEst. shaking
Santo DomingoValparaiso, Chile · pop. 6,69649 kmIIIWeak
San AntonioValparaiso, Chile · pop. 87,67553 kmIIWeak
MelipillaSantiago Metropolitan, Chile · pop. 63,10083 kmIIWeak
CasablancaValparaiso, Chile · pop. 24,53787 kmIIWeak
ValparaísoValparaiso, Chile · pop. 282,44898 kmIIWeak
Viña del MarValparaiso, Chile · pop. 334,248104 kmIIWeak
MaipúSantiago Metropolitan, Chile · pop. 503,635129 kmINot felt
SantiagoSantiago Metropolitan, Chile · pop. 4,837,295141 kmINot felt

Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more. Likely felt out to about 51 km.

Every agency's solution

Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses USGS, which has been reviewed by an analyst.

AgencyMagnitudeDepthEpicentreTime offsetStatus
GFZGFZ via GEOFON, GFZ Helmholtz Centre for Geosciences4.3 ML10 km33.85° S, 72.17° W−2.1 sAutomatic
USGSheadlineUSGS NEIC via U.S. Geological Survey4.3 mb31.4 km33.83° S, 72.11° W–Reviewed

How big was it?

Widely felt near the epicentre: rattling windows and objects. Significant damage is unlikely.

It released roughly the energy of 43 t of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 31 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M4.3 releases about 32× the energy of M3.3, and its waves are about 10× taller on a seismogram. Energy: 43 t of TNT vs 1.3 t of TNT.

Each square is the energy of one M3.3. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

1 later earthquake within 30 km; the largest was M5.2 3 days ago. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M4.3

1 later earthquake nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
32.375.229
  1. 5.247 km NNW of Pichilemu, O'Higgins Region, Chile09-25 15:29

Did you feel it?

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Reports on SeismoAtlas

No reports yet.

Event id gfz2026ssnx. First recorded here 28 Sept 2026, 17:32:06 UTC. Solutions: GFZ (geofon:gfz2026ssnx); USGS (usgs:us6000tx9m). Cite as: SeismoAtlas, “M4.3 earthquake 49 km WSW of Santo Domingo, Valparaiso, Chile”, https://seismoatlas.com/earthquake/gfz2026ssnx-m4-3-earthquake-49-km-wsw-of-santo-domingo-valparaiso-chile, data from USGS, GFZ.

JSON: /api/v1/events/gfz2026ssnx. SeismoAtlas is not an official warning service.