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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.94 mag strikes near San Simeon in CA


Earthquake location 35.815334320068S, -121.3201675415WA minor earthquake with magnitude 3.94 (ml/mb) was detected on Thursday, 22 kilometers (14 miles) from San Simeon in CA. Global date and time of event UTC/GMT: 14/08/25 / 2025-08-14 13:41:47 / August 14, 2025 @ 1:41 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -121.3201675415 West, latitude 35.815334320068 North, depth = 8.3100004196167 km. Unique identifier: nc75223397. Ids that are associated to the event: ew1755178910, nc75223397. The temblor was reported at 13:41:47 / 1:41 pm (local time epicenter). The earthquake occurred at a depth of 8.3100004196167 km (5 miles).

Country/countries that might be effected, United States (c. 310 233 000 pop). Epicenter of the event was 84 km (52 miles) from San Luis Obispo (c. 45 100 pop), 69 km (43 miles) from Atascadero (c. 28 300 pop), 61 km (38 miles) from Paso Robles (c. 27 200 pop), 68 km (42 miles) from Soledad (c. 25 700 pop), 57 km (35 miles) from Greenfield (c. 16 300 pop), 71 km (44 miles) from Los Osos (c. 14 300 pop). Nearest cities/city/towns to hypocenter/epicentrum was San Luis Obispo, Gonzales, Los Osos (min 5000 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days two and in the last 365 days thirty-four earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 130,000 minor quakes in the world each year.

Did you feel it?

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 22 km NNW of San Simeon, CA.

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More information

Parameter Value Description
Magnitude 3.94 mb The magnitude for the event.
Longitude -121.3201675415° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 35.815334320068° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8.3100004196167 km Depth of the event in kilometers.
Place 22 km NNW of San Simeon, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-08-14 13:41:47 Time when the event occurred. UTC/GMT
Updated 2025-08-14 13:50:55 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2.7 The maximum reported intensity for the event.
MMI 3.669 The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 239 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network nc The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ew,nc, A comma-separated list of network contributors.
Number of Stations Used 76 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1129 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.11 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 172 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc75223397 Id of event.
Event Code 75223397 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ew1755178910,nc75223397, A comma-separated list of event ids that are associated to an event.

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