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Light earthquake 4.27 mag, 1 km ESE of Fontana, California

Posted by admin on July 25, 2015 1 Comment

Earthquake location 34.0945015S, -117.4430008WA light earthquake with magnitude 4.27 (ml/mb) was reported 1 kilometers (1 miles) from Fontana in California on Saturday. Exact time and date of earthquake 25/07/15 / 2015-07-25 12:54:06 / July 25, 2015 @ 12:54 pm UTC/GMT. The temblor was reported at 05:54:06 / 5:54 am (local time epicenter). A tsunami warning has been issued near Fontana in California (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -117.4430008° West, 34.0945015° North, depth 4.55 km. The earthquake was roughly at a depth of 4.55 km (3 miles). Event ids that are associated to the earthquake: at00ns1nu7, ci37213455. Id of event: ci37213455.

Country/countries that might be effected, United States (c. 310 233 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Barstow Heights, Van Nuys, Yucca Valley. Epicenter of the earthquake was 74 km (46 miles) from Los Angeles (c. 3 792 600 pop), 78 km (48 miles) from Long Beach (c. 462 300 pop), 52 km (32 miles) from Anaheim (c. 336 300 pop), 55 km (34 miles) from Santa Ana (c. 324 500 pop), 16 km (10 miles) from Riverside (c. 303 900 pop), 59 km (37 miles) from Irvine (c. 212 400 pop).

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

Did you feel it?

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. 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: 1 km ESE of Fontana, California.

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More information

Parameter Value Description
Magnitude 4.27 mb The magnitude for the event.
Longitude -117.4430008° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 34.0945015° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 4.55 km Depth of the event in kilometers.
Place 1km ESE of Fontana, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-07-25 12:54:06 Time when the event occurred. UTC/GMT
Updated 2015-07-25 13:06:00 Time when the event was most recently updated. UTC/GMT
Timezone offset -420 Timezone offset from UTC in minutes at the event epicenter.
Felt 233 The total number of felt reports
CDI 4.2 The maximum reported intensity for the event.
MMI 6.21 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 reviewed 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 378 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 ,at,ci, A comma-separated list of network contributors.
Number of Stations Used 96 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.00616 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.27 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 30 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 ci37213455 Id of event.
Event Code 37213455 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00ns1nu7,ci37213455, A comma-separated list of event ids that are associated to an event.

1 Comment

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  1. Linda

    I’m in Butbank, Ca. (Los Angeles suburb). Didn’t feel it

    July 25, 2015
    Reply

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