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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.5 mag was detected near Nikolski in Alaska


Earthquake location 53.3756S, -169.6223WA minor earthquake with magnitude 3.5 (ml/mb) was detected on Monday, 70 km NW of Nikolski, Alaska (43 miles). The temblor was detected at 12:34:23 / 12:34 pm (local time epicenter). The epicenter was at a depth of 207.05 km (129 miles). Exact time and date of event in UTC/GMT: 19/02/18 / 2018-02-19 23:34:23 / February 19, 2018 @ 11:34 pm. Id of earthquake: us2000d905. Event ids that are associated: ak18571291, us2000d905. Exact location of event, longitude -169.6223 West, latitude 53.3756 North, depth = 207.05 km.

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

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 70 km NW of Nikolski, Alaska.

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More information

Parameter Value Description
Magnitude 3.5 mb The magnitude for the event.
Longitude -169.6223° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.3756° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 207.05 km Depth of the event in kilometers.
Place 70km NW of Nikolski, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-19 23:34:23 Time when the event occurred. UTC/GMT
Updated 2018-03-06 05:43:27 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 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 188 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.577 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.46 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 163 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 us2000d905 Id of event.
Event Code 2000d905 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak18571291,us2000d905, A comma-separated list of event ids that are associated to an event.

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