Minor earthquake 3.03 mag, 6 km NNE of Fontana, CA

A minor earthquake magnitude 3.03 (ml/mb) has occurred on Tuesday, 6 kilometers (4 miles) from Fontana in CA. Event id: ci37912351. Ids that are associated to the earthquake: ci37912351. The temblor was picked up at 05:23:06 / 5:23 am (local time epicenter). Global date and time of event UTC/GMT: 10/04/18 / 2018-04-10 13:23:06 / April 10, 2018 @ 1:23 pm. The earthquake occurred at a depth of 4.56 km (3 miles) below the earth’s surface. Exact location of event, longitude -117.4248352 West, latitude 34.1399994 North, depth = 4.56 km.

Earthquake epicenter was 76 km (47 miles) from Los Angeles (c. 3 792 600 pop), 56 km (35 miles) from Anaheim (c. 336 300 pop), 60 km (37 miles) from Santa Ana (c. 324 500 pop), 21 km (13 miles) from Riverside (c. 303 900 pop), 64 km (40 miles) from Irvine (c. 212 400 pop). Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Compton, Signal Hill, Florence-Graham.

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor quakes in the world. In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days four and in the last 365 days fourty-five earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 6 km NNE of Fontana, CA.

Anaheim CA Compton Florence-Graham Fontana Irvine Los Angeles Riverside Santa Ana Signal Hill United States

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Parameter	Value	Description
Magnitude	3.03 mb	The magnitude for the event.
Longitude	-117.4248352° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	34.1399994° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	4.56 km	Depth of the event in kilometers.
Place	6km NNE of Fontana, CA	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-04-10 13:23:06	Time when the event occurred. UTC/GMT
Updated	2018-04-10 13:36:49	Time when the event was most recently updated. UTC/GMT
Timezone offset	-480	Timezone offset from UTC in minutes at the event epicenter.
Felt	150	The total number of felt reports
CDI	3.1	The maximum reported intensity for the event.
MMI	4.54	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	188	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	115	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.05251	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.23 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	19	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	ci37912351	Id of event.
Event Code	37912351	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ci37912351,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.03 mag, 6 km NNE of Fontana, CA

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