3.9
Earthquake Details: Potosí, Bolivia
Sep 28, 2026, 09:31:03
A magnitude 3.9 earthquake occurred near Potosí, Bolivia on Sep 28, 2026 at 09:31:03. The seismic event was recorded at a depth of -217.9 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth-217.9 km
Significance0
Latitude-21.5580
Longitude-66.7330
Event IDemsc:20260928_0000139
Magnitude3.9
Updated:Sep 28, 2026, 10:09:14 UTC
External Resources
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Time & depth
- Local time
- Sep 28, 2026, 05:31:03 GMT-4
- UTC
- Sep 28, 2026, 09:31:03 UTC
-217.9 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M3.6Salta, ArgentinaBeforeM3.4Antofagasta, ChileBeforeM4.465 km WSW of Ollagüe, ChileBeforeM3.6Salta, ArgentinaBeforeM3.7Tarapacá, ChileBeforeM3.8Antofagasta, ChileBeforeM3.9Tarapacá, ChileBeforeM4.0Tarapacá, ChileBeforeM3.5Salta, ArgentinaBeforeM3.4Antofagasta, ChileBeforeM3.8Jujuy, ArgentinaBeforeM3.6Salta, ArgentinaBefore
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Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Sep 28, 2026, 10:09 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0. CC BY 4.0
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies. CC BY 4.0
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.