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Minor earthquake: M2.87 quake has struck near Mammoth Lakes in California


Earthquake location 37.4606667S, -118.800499WA minor earthquake magnitude 2.87 (ml/mb) has struck on Saturday, 25 kilometers (16 miles) from Mammoth Lakes in California. Date and time of earthquake in UTC/GMT: 12/08/17 / 2017-08-12 16:28:05 / August 12, 2017 @ 4:28 pm. Exact location of event, longitude -118.800499 West, latitude 37.4606667 North, depth = 0.4 km. The epicenter of the earthquake was roughly 0.4 km (0 miles) below the earth’s surface. The 2.87-magnitude earthquake has occurred at 08:28:05 / 8:28 am (local time epicenter). Id of earthquake: nc72867586. Event ids that are associated: nc72867586.

Nearest cities/city/towns to hypocenter/epicentrum was Mammoth Lakes (min 5000 pop). Epicenter of the earthquake was 26 km (16 miles) from Mammoth Lakes (c. 8 200 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days five and in the last 365 days seventy 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. Each year there are an estimated 1,300,000 minor quakes in the world.

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. 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: 25 km SE of Mammoth Lakes, California.

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More information

Parameter Value Description
Magnitude 2.87 mb The magnitude for the event.
Longitude -118.800499° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.4606667° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 0.4 km Depth of the event in kilometers.
Place 25km SE of Mammoth Lakes, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-08-12 16:28:05 Time when the event occurred. UTC/GMT
Updated 2017-08-12 16:33:03 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 127 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 34 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.06827 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.05 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 119 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 nc72867586 Id of event.
Event Code 72867586 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72867586, A comma-separated list of event ids that are associated to an event.

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