A minor earthquake magnitude 3.45 (ml/mb) strikes 49 kilometers (30 miles) from Petrolia in CA on Monday. Unique identifier: nc75255261. Ids that are associated to the event: nc75255261. Exact location of event, depth 0.37000000476837 km, -124.85500335693° West, 40.390998840332° North. The epicenter of the earthquake was roughly 0.37000000476837 km (0 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 27/10/25 / 2025-10-27 12:23:53 / October 27, 2025 @ 12:23 pm. The 3.45-magnitude earthquake was detected at 12:23:53 / 12:23 pm (local time epicenter).
Close country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Bayside, Eureka, Fortuna (min 5000 pop). Epicenter of the earthquake was 74 km (46 miles) from Eureka (c. 27 200 pop), 84 km (52 miles) from Bayside (c. 17 100 pop), 63 km (39 miles) from Fortuna (c. 11 900 pop).
In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days three and in the last 365 days three hundred earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. There are an estimated 130,000 minor quakes in the world each year.
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How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 49 km W of Petrolia, CA.
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