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Light earthquake: M4.42 quake has struck near Janesville in California

Earthquake location 40.1549988S, -120.1998367WA light earthquake magnitude 4.42 (ml/mb) has occurred on Wednesday, 31 kilometers (19 miles) from Janesville in California. The temblor was detected at 21:58:19 / 9:58 pm (local time epicenter). All ids that are associated to the event: nc72670075. Unique identifier: nc72670075. The earthquake occurred at a depth of 4.72 km (3 miles) below the earth’s surface. Exact location of earthquake, longitude -120.1998367 West, latitude 40.1549988 North, depth = 4.72 km. Global time and date of event 04/08/16 / 2016-08-04 04:58:19 / August 4, 2016 @ 4:58 am UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Truckee, Sparks, Reno. Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected). The epicenter was 77 km (48 miles) from Reno (c. 225 200 pop), 79 km (49 miles) from Sparks (c. 90 300 pop), 72 km (45 miles) from Sun Valley (c. 19 300 pop), 48 km (30 miles) from Susanville (c. 17 900 pop), 92 km (57 miles) from Truckee (c. 16 200 pop), 70 km (44 miles) from Spanish Springs (c. 15 100 pop).

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

How would you describe the shaking?

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: 31 km ESE of Janesville, California.

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More information

Parameter Value Description
Magnitude 4.42 mb The magnitude for the event.
Longitude -120.1998367° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.1549988° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 4.72 km Depth of the event in kilometers.
Place 31km ESE of Janesville, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-08-04 04:58:19 Time when the event occurred. UTC/GMT
Updated 2016-08-04 05:04:16 Time when the event was most recently updated. UTC/GMT
Timezone offset -420 Timezone offset from UTC in minutes at the event epicenter.
Felt 7 The total number of felt reports
CDI 3.1 The maximum reported intensity for the event.
MMI 5.19 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 303 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 15 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.08383 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 190 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 nc72670075 Id of event.
Event Code 72670075 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72670075, A comma-separated list of event ids that are associated to an event.

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