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Light earthquake, 4.11 mag was detected near Alum Rock in California

Earthquake location 37.3103333S, -121.6794968WA light earthquake with magnitude 4.11 (ml/mb) was reported 14 kilometers (9 miles) from Alum Rock in California on Monday. The temblor was reported at 16:53:18 / 4:53 pm (local time epicenter). Event id: nc72906781. Ids that are associated to the earthquake: nc72906781, at00oxl14t. Exact location of earthquake, -121.6794968° West, 37.3103333° North, depth 7.91 km. Exact time and date of earthquake 10/10/17 / 2017-10-10 00:53:18 / October 10, 2017 @ 12:53 am UTC/GMT. A tsunami warning has been issued near Alum Rock in California (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 7.91 km (5 miles).

Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). Nearest cities/city/towns to hypocenter/epicentrum was El Sobrante, Richmond, Oakdale (min 5000 pop). Earthquake epicenter was 19 km (12 miles) from San Jose (c. 945 900 pop), 83 km (52 miles) from San Francisco (c. 805 200 pop), 76 km (47 miles) from Oakland (c. 390 700 pop), 80 km (50 miles) from Stockton (c. 291 700 pop), 38 km (24 miles) from Fremont (c. 214 100 pop), 70 km (44 miles) from Modesto (c. 201 200 pop).

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

Did you feel it?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 14 km ESE of Alum Rock, California. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.11 mb The magnitude for the event.
Longitude -121.6794968° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.3103333° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7.91 km Depth of the event in kilometers.
Place 14km ESE of Alum Rock, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-10-10 00:53:18 Time when the event occurred. UTC/GMT
Updated 2017-10-10 01:11:27 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 2440 The total number of felt reports
CDI 3.4 The maximum reported intensity for the event.
MMI 3.76 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 600 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network nc The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,nc,at, A comma-separated list of network contributors.
Number of Stations Used 80 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.04293 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.06 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 33 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mw The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc72906781 Id of event.
Event Code 72906781 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72906781,at00oxl14t, A comma-separated list of event ids that are associated to an event.

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