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Minor earthquake: M2.8 quake has struck near The Geysers in California

Posted by admin on September 21, 2015 0 Comments

Earthquake location 38.7515S, -122.7118333WA minor earthquake magnitude 2.8 (ml/mb) strikes 4 kilometers (2 miles) from The Geysers in California on Saturday. Event ids that are associated to the earthquake: nc72523665. Id of event: nc72523665. Exact location of event, depth 2.47 km, -122.7118333° West, 38.7515° North. The earthquake was roughly at a depth of 2.47 km (2 miles). The temblor was reported at 08:28:29 / 8:28 am (local time epicenter). Exact time and date of earthquake 19/09/15 / 2015-09-19 15:28:29 / September 19, 2015 @ 3:28 pm UTC/GMT.

Nearest cities/city/villages to epicentrum/hypocenter was Vacaville, American Canyon, Novato (min 5000 pop). Epicenter of the event was 35 km (21 miles) from Santa Rosa (c. 167 800 pop), 77 km (48 miles) from Vacaville (c. 92 400 pop), 63 km (39 miles) from Napa (c. 76 900 pop), 58 km (36 miles) from Petaluma (c. 57 900 pop), 73 km (45 miles) from Novato (c. 51 900 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

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. In the past 24 hours, there have been 0, in the last 10 days two, in the past 30 days seven and in the last 365 days fourty-one earthquakes of magnitude 3.0 or greater that have been detected nearby.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking 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: 4 km SE of The Geysers, California.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -122.7118333° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.7515° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 2.47 km Depth of the event in kilometers.
Place 4km SE of The Geysers, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-19 15:28:29 Time when the event occurred. UTC/GMT
Updated 2015-09-21 17:30:20 Time when the event was most recently updated. UTC/GMT
Timezone offset -420 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 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 121 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 18 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.05407 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.04 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 57 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mh The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc72523665 Id of event.
Event Code 72523665 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72523665, A comma-separated list of event ids that are associated to an event.

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