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Light earthquake, 4.08 mag strikes near Yountville in California

Earthquake location 38.428833S, -122.2600021WA light earthquake magnitude 4.08 (mg/mb) was reported Thursday, 9 kilometers (6 miles) from Yountville in California. The temblor was reported at 19:53:00 / 7:53 pm (local time epicenter) at a depth of 8.89 km (6 miles). Global time of event 22/05/15 / 2015-05-22 02:53:00 / May 22, 2015 @ 2:53 am UTC/GMT. A tsunami warning has been issued near Yountville in California, according to the U.S. Geological Survey. Exact location of event, longitude -122.2600021 West, latitude 38.428833 North, depth 8.89 km, unique identifier, nc72453246. Ids that are associated to the event, ,at00noqdcb,nc72453246,.

Close countries, United States (c. 310 233 000 pop). The epicenter was 74 km (46 miles) from San Francisco (c. 805 200 pop), 69 km (43 miles) from Sacramento (c. 466 500 pop), 69 km (43 miles) from Oakland (c. 390 700 pop), 40 km (25 miles) from Santa Rosa (c. 167 800 pop), 77 km (48 miles) from Elk Grove (c. 153 000 pop), 86 km (53 miles) from Hayward (c. 144 200 pop). Nearest city, towns to epicentrum/hypocenter was Pleasanton, Roseville, Gold River.

Did you feel it?

Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 9 km ENE of Yountville, California.

More information

Parameter Value Description
Magnitude 4.08 mb The magnitude for the event.
Longitude -122.2600021° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.428833° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8.89 km Depth of the event in kilometers.
Place 9km ENE of Yountville, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-05-22 02:53:00 Time when the event occurred. UTC/GMT
Updated 2015-05-22 03:04:44 Time when the event was most recently updated. UTC/GMT
Timezone offset -420 Timezone offset from UTC in minutes at the event epicenter.
Felt 243 The total number of felt reports
CDI 3.4 The maximum reported intensity for the event.
MMI 3.92 The maximum estimated instrumental intensity for the event.
Alert Level green 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 1 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 339 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 ,at,nc, A comma-separated list of network contributors.
Number of Stations Used 116 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1768 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.21 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 70 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mw The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc72453246 Id of event.
Event Code 72453246 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00noqdcb,nc72453246, A comma-separated list of event ids that are associated to an event.

1 Comment

  1. Marian

    I am in Fairfield, Ca. and felt the quake at 7:53 – May 21, today.
    The small sofa I was sitting on with my dog, shook like someone was shaking it with their hands. A side to side motion. This was nothing compared to the tree I had to hug when a quake hit the Bay Area in 87′ ( I think). Bridges fell during that one!

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