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Minor earthquake: M3.87 quake has struck near Montague in CA

Earthquake location 41.7883339S, -122.3388367WA minor earthquake magnitude 3.87 (ml/mb) strikes 17 kilometers (11 miles) from Montague in CA on Friday. Global time and date of event 30/11/19 / 2019-11-30 01:45:40 / November 30, 2019 @ 1:45 am UTC/GMT. Id of earthquake: nc73310126. Event ids that are associated: nc73310126. The earthquake was roughly at a depth of 4.77 km (3 miles). Exact location, longitude -122.3388367° West, latitude 41.7883339° North, depth = 4.77 km. The 3.87-magnitude earthquake has occurred at 17:45:40 / 5:45 pm (local time epicenter).

Epicenter of the event was 74 km (46 miles) from Medford (c. 74 900 pop), 67 km (42 miles) from Klamath Falls (c. 20 800 pop), 55 km (34 miles) from Ashland (c. 20 100 pop), 68 km (42 miles) from Altamont (c. 19 300 pop), 81 km (50 miles) from Central Point (c. 17 200 pop), 85 km (53 miles) from Eagle Point (c. 8 500 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Eagle Point, White City, Central Point.

Each year there are an estimated 130,000 minor quakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days two earthquakes of magnitude 3.0 or greater that have been detected nearby.

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. 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: 17 km ENE of Montague, CA.

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More information

Parameter Value Description
Magnitude 3.87 mb The magnitude for the event.
Longitude -122.3388367° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 41.7883339° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 4.77 km Depth of the event in kilometers.
Place 17km ENE of Montague, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-11-30 01:45:40 Time when the event occurred. UTC/GMT
Updated 2019-11-30 01:51:27 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 The maximum reported intensity for the event.
MMI 3.98 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 230 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 7 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.0743 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.16 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 139 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 nc73310126 Id of event.
Event Code 73310126 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73310126, A comma-separated list of event ids that are associated to an event.

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