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Minor earthquake: M2.83 quake has struck near Boulder in Montana

Earthquake location 46.2553333S, -112.0595WA minor earthquake magnitude 2.83 (ml/mb) has struck on Tuesday, 5 kilometers (3 miles) from Boulder in Montana. Global time and date of event 22/04/20 / 2020-04-22 06:40:45 / April 22, 2020 @ 6:40 am UTC/GMT. The 2.83-magnitude earthquake has occurred at 23:40:45 / 11:40 pm (local time epicenter). Exact location of event, depth 6.79 km, -112.0595° West, 46.2553333° North. The epicenter of the earthquake was roughly 6.79 km (4 miles) below the earth’s surface. Id of earthquake: mb80410219. Event ids that are associated: mb80410219.

Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Nearest cities/city/villages to epicentrum/hypocenter was Anaconda, Butte-Silver Bow (Balance), Butte (min 5000 pop). Event epicenter was 46 km (29 miles) from Butte (c. 34 200 pop), 61 km (38 miles) from Butte-Silver Bow (Balance) (c. 33 500 pop), 38 km (23 miles) from Helena (c. 28 200 pop), 69 km (43 miles) from Anaconda (c. 9 400 pop), 41 km (26 miles) from Helena Valley Southeast (c. 8 200 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. 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 twenty-three earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 1,300,000 minor earthquakes in the world.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 5 km ENE of Boulder, Montana. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.83 mb The magnitude for the event.
Longitude -112.0595° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 46.2553333° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 6.79 km Depth of the event in kilometers.
Place 5km ENE of Boulder, Montana Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-04-22 06:40:45 Time when the event occurred. UTC/GMT
Updated 2020-04-22 14:40:58 Time when the event was most recently updated. UTC/GMT
Timezone offset -420 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 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 123 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network mb The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,mb, A comma-separated list of network contributors.
Number of Stations Used 37 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.402 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.18 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 111 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 mb80410219 Id of event.
Event Code 80410219 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,mb80410219, A comma-separated list of event ids that are associated to an event.

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