According to records of the National Seismological System (SSN)Mexican institution in charge of monitoring seismic activity in Mexico in real time, The state of Guerrero registered seismic activity before 8:00 a.m. this Friday, October 17.
The SSN operates a network of seismological stations distributed throughout the country that send data continuously and in real time to an analysis center to determine the date, time, magnitude, epicenter and depth of earthquakes.
In the early hours of this Friday, at 06:43 hours, A 4.0 magnitude earthquake was also recorded in Coalcoman, Michoacán.
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Tremors recorded this Friday, October 17, 2025
On the morning of this Friday, October 17, seismic activity occurred in Guerrero; Below we present more details of this telluric movement recorded by the SSN.
| MAGNITUDE | TIME | EPICENTER | DEPTH |
| 4.6 | 06:35:23 | 71 km south of San Marcos | 12 km |
| 4.3 | 06:44:32 | 82 km south of San Marcos | 16.3 km |
So far, the entity’s Civil Protection and Firefighters authorities have not reported any damage.
Yesterday there was also seismic activity in Guerrero, but 27 km south of the town of Petatlán. The magnitude of the incident was barely 3.4.
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