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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.5 mag has occurred near Unalaska in Alaska


Earthquake location 52.258S, -164.6589WA minor earthquake magnitude 3.5 (ml/mb) strikes 219 km SE of Unalaska, Alaska (136 miles) on Wednesday. The temblor was detected at 11:44:12 / 11:44 am (local time epicenter). Exact location of event, depth 10 km, -164.6589° West, 52.258° North. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. All ids that are associated to the event: ak15341181, us20008ln1. Unique identifier: us20008ln1. Global date and time of event UTC/GMT: 22/02/17 / 2017-02-22 22:44:12 / February 22, 2017 @ 10:44 pm.

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

Questions or comments?

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. 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: 219 km SE of Unalaska, Alaska.

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More information

Parameter Value Description
Magnitude 3.5 mb The magnitude for the event.
Longitude -164.6589° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.258° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 219km SE of Unalaska, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-02-22 22:44:12 Time when the event occurred. UTC/GMT
Updated 2017-03-10 23:43:09 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 1.941 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.26 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 225 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us20008ln1 Id of event.
Event Code 20008ln1 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak15341181,us20008ln1, A comma-separated list of event ids that are associated to an event.

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