Overall Green Earthquake in Mexico on 17 Jul 2026 14:48 UTC

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M 7.3 in Mexico on 17 Jul 2026 14:48 UTC

2026-07-17 16:17 message from NTWC

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 7.3 occurred near the coast of chiapas MEXICO at 1449 UTC on friday JULY 17 2026
TSUNAMI waves have been observed
Based on all available data hazardous TSUNAMI waves are forecast for some coasts

Threat Forecast

TSUNAMI waves reaching 0.3 to 1 meters above the tide level are possible for some coasts of guatemala... and mexico.
TSUNAMI waves are forecast to be less than 0.3 meters above the tide level for the coasts of colombia... COSTA rica... ecuador... EL salvador... honduras... nicaragua... panama... and peru.
Actual amplitudes at the coast MAY vary from forecast amplitudes due to uncertainties in the forecast and local features. in particular maximum TSUNAMI amplitudes on atolls and at locations with fringing or barrier reefs will likely be much smaller than the forecast indicates.
For other areas covered by this product a forecast has not yet been computed. the forecast will be expanded if necessary in subsequent products.

Tsunami Observations

The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level

GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
Puerto Madero Mx	14.7	-92.4	15: 51	0.32	12
Chiapas Mx	14.7	-92.4	15: 59	0.33	28

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
PTWC	Puerto Madero Mx	14.7	-92.4	15: 51	0.32	12
PTWC	Chiapas Mx	14.7	-92.4	15: 59	0.33	28

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