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Minor earthquake, 2.8 mag has occurred near Alum Rock in CA

Earthquake location 37.4303322S, -121.7985001WA minor earthquake with magnitude 2.8 (ml/mb) was detected on Monday, 8 kilometers (5 miles) from Alum Rock in CA. The temblor was reported at 17:16:18 / 5:16 pm (local time epicenter). Event ids that are associated to the earthquake: nc73302451. Id of event: nc73302451. Global time and date of event 12/11/19 / 2019-11-12 01:16:18 / November 12, 2019 @ 1:16 am UTC/GMT. The earthquake occurred at a depth of 3.73 km (2 miles). Exact location of earthquake, longitude -121.7985001 West, latitude 37.4303322 North, depth = 3.73 km.

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Earthquake epicenter was 13 km (8 miles) from San Jose (c. 945 900 pop), 67 km (41 miles) from San Francisco (c. 805 200 pop), 59 km (37 miles) from Oakland (c. 390 700 pop), 74 km (46 miles) from Stockton (c. 291 700 pop), 21 km (13 miles) from Fremont (c. 214 100 pop). Nearest cities/city/towns to hypocenter/epicentrum was August, Sausalito, Ceres (min 5000 pop).

Each year there are an estimated 1,300,000 minor quakes in the world. In the past 24 hours, there have been 0, in the last 10 days 0, in the past 30 days ten and in the last 365 days thirty-nine 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.

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 8 km NNE of Alum Rock, CA.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -121.7985001° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.4303322° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 3.73 km Depth of the event in kilometers.
Place 8km NNE of Alum Rock, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-11-12 01:16:18 Time when the event occurred. UTC/GMT
Updated 2019-11-12 01:22:03 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2.2 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 121 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, A comma-separated list of network contributors.
Number of Stations Used 71 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.02004 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.07 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 md The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID nc73302451 Id of event.
Event Code 73302451 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73302451, A comma-separated list of event ids that are associated to an event.

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