3.9
Earthquake Details: 45 km from San Isidro de El General, San Jose, Costa Rica
Sep 18, 2026, 00:42:27
A magnitude 3.9 earthquake occurred near 45 km from San Isidro de El General, San Jose, Costa Rica on Sep 18, 2026 at 00:42:27. The seismic event was recorded at a depth of -21 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
View recent seismic activity near this event:
Costa RicaSan JoseSan Isidro de El General (Nearest City)Technical Details
Depth-21 km
Significance0
Latitude9.1077
Longitude-84.0138
Event IDemsc:20260918_0000014
Magnitude3.9
Updated:Sep 18, 2026, 01:08:11 UTC
External Resources
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Time & depth
- Local time
- Sep 17, 2026, 18:42:27 CST
- UTC
- Sep 18, 2026, 00:42:27 UTC
-21 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M3.5near the coast of NicaraguaBeforeM3.3off the coast of Costa RicaBeforeM3.1Costa RicaBeforeM3.3Panama–Costa Rica border regionBeforeM3.3PanamaBeforeM3.1Panama–Costa Rica border regionBeforeM3.8Costa RicaBeforeM3.0near the coast of NicaraguaBeforeM4.4near the coast of NicaraguaBeforeM3.6Costa RicaBeforeM3.7Costa RicaBeforeM3.0Costa RicaBefore
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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 18, 2026, 01:08 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.