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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3.77 quake has struck near Blackhawk in California



Earthquake location 37.8328323S, -121.7971649WA minor earthquake magnitude 3.77 (ml/mb) strikes 9 kilometers (6 miles) from Blackhawk in California on Saturday. Event id: nc72795746. Ids that are associated to the earthquake: nc72795746. The epicenter of the earthquake was roughly 17.99 km (11 miles) below the earth’s surface. Exact location of earthquake, longitude -121.7971649 West, latitude 37.8328323 North, depth = 17.99 km. The temblor was reported at 17:29:19 / 5:29 pm (local time epicenter). Global date and time of event UTC/GMT: 30/04/17 / 2017-04-30 01:29:19 / April 30, 2017 @ 1:29 am.

Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). Epicenter of the event was 56 km (35 miles) from San Jose (c. 945 900 pop), 55 km (34 miles) from San Francisco (c. 805 200 pop), 42 km (26 miles) from Oakland (c. 390 700 pop), 47 km (29 miles) from Stockton (c. 291 700 pop), 36 km (22 miles) from Fremont (c. 214 100 pop), 74 km (46 miles) from Modesto (c. 201 200 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Ben Lomond, West Sacramento, Hughson.

Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days seven and in the last 365 days twenty-six earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 3.0 to 4.0 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 data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 9 km E of Blackhawk, California.

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More information

Parameter Value Description
Magnitude 3.77 mb The magnitude for the event.
Longitude -121.7971649° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.8328323° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 17.99 km Depth of the event in kilometers.
Place 9km E of Blackhawk, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-04-30 01:29:19 Time when the event occurred. UTC/GMT
Updated 2017-04-30 01:39:21 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 122 The total number of felt reports
CDI 4.1 The maximum reported intensity for the event.
MMI 2.47 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 269 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 85 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.02281 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.24 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 84 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 nc72795746 Id of event.
Event Code 72795746 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72795746, A comma-separated list of event ids that are associated to an event.

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