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Minor earthquake, 2.8 mag strikes near Anza in CA

Earthquake location 33.6395S, -116.7215WA minor earthquake with magnitude 2.8 (ml/mb) was detected on Wednesday, 10 kilometers (6 miles) from Anza in CA. The 2.8-magnitude earthquake has occurred at 14:48:28 / 2:48 pm (local time epicenter). The epicenter was at a depth of 13.44 km (8 miles). Exact time and date of event in UTC/GMT: 21/12/16 / 2016-12-21 22:48:28 / December 21, 2016 @ 10:48 pm. Event id: ci37768872. Ids that are associated to the earthquake: ci37768872. Exact location of event, depth 13.44 km, -116.7215° West, 33.6395° North.

Country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Camp Pendleton South, Rubidoux, San Bernardino (min 5000 pop). Event epicenter was 71 km (44 miles) from Riverside (c. 303 900 pop), 74 km (46 miles) from San Bernardino (c. 209 900 pop), 58 km (36 miles) from Moreno Valley (c. 193 400 pop), 67 km (42 miles) from Escondido (c. 143 900 pop), 47 km (29 miles) from Murrieta (c. 103 500 pop).

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 10 km NNW of Anza, CA.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -116.7215° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 33.6395° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 13.44 km Depth of the event in kilometers.
Place 10km NNW of Anza, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-12-21 22:48:28 Time when the event occurred. UTC/GMT
Updated 2016-12-21 22:59:08 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 13 The total number of felt reports
CDI 3.1 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 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 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 76 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.05789 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.15 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 18 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 ci37768872 Id of event.
Event Code 37768872 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ci37768872, A comma-separated list of event ids that are associated to an event.

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