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Minor earthquake: M2.85 quake has struck near Weaverville in CA


Earthquake location 40.8614998S, -123.104332WA minor earthquake magnitude 2.85 (ml/mb) has occurred on Saturday, 20 kilometers (12 miles) from Weaverville in CA. Exact time and date of event in UTC/GMT: 31/08/19 / 2019-08-31 11:18:32 / August 31, 2019 @ 11:18 am. Id of earthquake: nc73262680. Event ids that are associated: nc73262680. Exact location of earthquake, longitude -123.104332 West, latitude 40.8614998 North, depth = 43.73 km. The 2.85-magnitude earthquake was detected at 03:18:32 / 3:18 am (local time epicenter). The earthquake occurred at a depth of 43.73 km (27 miles) below the earth’s surface.

Nearest cities/city/towns to hypocenter/epicentrum was Redding, Shasta Lake (min 5000 pop). The epicenter was 67 km (42 miles) from Redding (c. 89 900 pop), 65 km (40 miles) from Shasta Lake (c. 10 200 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop).

In the past 24 hours, there have been 0, in the last 10 days 0, in the past 30 days 0 and in the last 365 days eight earthquakes of magnitude 3.0 or greater that have been detected in the same area. Every year there are an estimated 1,300,000 minor earthquakes in the world. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Did you feel anything?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 20 km NW of Weaverville, CA. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.85 mb The magnitude for the event.
Longitude -123.104332° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.8614998° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 43.73 km Depth of the event in kilometers.
Place 20km NW of Weaverville, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-08-31 11:18:32 Time when the event occurred. UTC/GMT
Updated 2019-08-31 11:23:03 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI 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 125 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 24 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1473 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.15 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 80 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 nc73262680 Id of event.
Event Code 73262680 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73262680, A comma-separated list of event ids that are associated to an event.

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