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Light earthquake, 4.47 mag was detected near Big Bear Lake in California

Posted by admin on September 16, 2015 1 Comment

Earthquake location 34.1381683S, -116.8596649WA light earthquake magnitude 4.47 (ml/mb) strikes 13 kilometers (8 miles) from Big Bear Lake in California on Wednesday. The earthquake occurred at a depth of 11.21 km (7 miles) below the earth’s surface. Id of earthquake: ci37243591. Event ids that are associated: ci37243591, us20003jzp. Exact time and date of earthquake 16/09/15 / 2015-09-16 16:10:47 / September 16, 2015 @ 4:10 pm UTC/GMT. The 4.47-magnitude earthquake has occurred at 09:10:47 / 9:10 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -116.8596649 West, latitude 34.1381683 North, depth = 11.21 km.

Close country/countries that might be effected, United States (c. 310 233 000 pop). Earthquake epicenter was 54 km (33 miles) from Riverside (c. 303 900 pop), 40 km (25 miles) from San Bernardino (c. 209 900 pop), 53 km (33 miles) from Fontana (c. 196 100 pop), 41 km (25 miles) from Moreno Valley (c. 193 400 pop), 68 km (42 miles) from Rancho Cucamonga (c. 165 300 pop), 73 km (46 miles) from Ontario (c. 163 900 pop). Closest city/cities/towns to epicentrum/hypocenter was Azusa, Mission Viejo, Mecca (min 5000 pop).

Every year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days three and in the last 365 days thirty-six earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 13 km SSE of Big Bear Lake, California. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.47 mb The magnitude for the event.
Longitude -116.8596649° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 34.1381683° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 11.21 km Depth of the event in kilometers.
Place 13km SSE of Big Bear Lake, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-16 16:10:47 Time when the event occurred. UTC/GMT
Updated 2015-09-16 16:19:14 Time when the event was most recently updated. UTC/GMT
Timezone offset -420 Timezone offset from UTC in minutes at the event epicenter.
Felt 17 The total number of felt reports
CDI 3.8 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 314 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,us, A comma-separated list of network contributors.
Number of Stations Used 87 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.07732 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.14 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 35 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 ci37243591 Id of event.
Event Code 37243591 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ci37243591,us20003jzp, A comma-separated list of event ids that are associated to an event.

1 Comment

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  1. Nancy

    Felt it n a Mission Viejo

    September 16, 2015
    Reply

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