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Minor earthquake 2.85 mag, 6 km NNW of The Geysers, CA


Earthquake location 38.820499420166S, -122.79699707031WA minor earthquake with magnitude 2.85 (ml/mb) was detected on Saturday, 6 kilometers (4 miles) from The Geysers in CA. Event id: nc75212052. Ids that are associated to the earthquake: nc75212052. Global time and date of event 19/07/25 / 2025-07-19 14:23:03 / July 19, 2025 @ 2:23 pm UTC/GMT. The epicenter was at a depth of 3.1300001144409 km (2 miles). Exact location, longitude -122.79699707031° West, latitude 38.820499420166° North, depth = 3.1300001144409 km. The temblor was detected at 14:23:03 / 2:23 pm (local time epicenter).

Earthquake epicenter was 43 km (27 miles) from Santa Rosa (c. 167 800 pop), 73 km (46 miles) from Napa (c. 76 900 pop), 67 km (42 miles) from Petaluma (c. 57 900 pop), 54 km (34 miles) from Rohnert Park (c. 41 000 pop), 30 km (19 miles) from Windsor (c. 26 800 pop). Nearest cities/city/towns to hypocenter/epicentrum was Napa, Williams, Petaluma (min 5000 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

In the past 24 hours, there have been 0, in the last 10 days one, in the past 30 days three and in the last 365 days thirty-five earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 1,300,000 minor quakes in the world. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 6 km NNW of The Geysers, CA. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.85 mb The magnitude for the event.
Longitude -122.79699707031° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.820499420166° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 3.1300001144409 km Depth of the event in kilometers.
Place 6 km NNW of The Geysers, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-07-19 14:23:03 Time when the event occurred. UTC/GMT
Updated 2025-07-19 14:27:30 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI 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 automatic 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 125 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 ,nc, A comma-separated list of network contributors.
Number of Stations Used 79 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.01062 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.08 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 20 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type md The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc75212052 Id of event.
Event Code 75212052 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc75212052, A comma-separated list of event ids that are associated to an event.

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