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Minor earthquake, 2.87 mag was detected near Big Bear City in California



Earthquake location 34.3038333S, -116.8948333WA minor earthquake magnitude 2.87 (ml/mb) has struck on Sunday, 7 kilometers (4 miles) from Big Bear City in California. The earthquake occurred at a depth of 5.32 km (3 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 21/02/16 / 2016-02-21 17:17:17 / February 21, 2016 @ 5:17 pm. Exact location of earthquake, -116.8948333° West, 34.3038333° North, depth 5.32 km. The 2.87-magnitude earthquake has occurred at 09:17:17 / 9:17 am (local time epicenter). Id of earthquake: ci37527112. Event ids that are associated: ci37527112.

Country/countries that might be effected, United States (c. 310 233 000 pop). The epicenter was 60 km (38 miles) from Riverside (c. 303 900 pop), 42 km (26 miles) from San Bernardino (c. 209 900 pop), 55 km (34 miles) from Fontana (c. 196 100 pop), 51 km (32 miles) from Moreno Valley (c. 193 400 pop), 68 km (42 miles) from Rancho Cucamonga (c. 165 300 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Canyon Lake, Rancho Mirage, Home Gardens.

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

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. 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: 7 km NW of Big Bear City, California.

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More information

Parameter Value Description
Magnitude 2.87 mb The magnitude for the event.
Longitude -116.8948333° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 34.3038333° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5.32 km Depth of the event in kilometers.
Place 7km NW of Big Bear City, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-02-21 17:17:17 Time when the event occurred. UTC/GMT
Updated 2016-02-21 17:28:42 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 3 The total number of felt reports
CDI 2.7 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 128 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ci The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ci, A comma-separated list of network contributors.
Number of Stations Used 91 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.04666 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.16 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 38 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 ci37527112 Id of event.
Event Code 37527112 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ci37527112, A comma-separated list of event ids that are associated to an event.

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