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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.8 mag strikes near Attu Station in Alaska



Earthquake location 53.0659S, 171.9629WA minor earthquake magnitude 3.8 (ml/mb) has occurred on Wednesday, 85 km WNW of Attu Station, Alaska (53 miles). Event id: us20009z6t. Ids that are associated to the earthquake: us20009z6t. The temblor was detected at 08:18:21 / 8:18 am (local time epicenter). Exact location of earthquake, longitude 171.9629 East, latitude 53.0659 North, depth = 24.56 km. Date and time of earthquake in UTC/GMT: 18/07/17 / 2017-07-18 21:18:21 / July 18, 2017 @ 9:18 pm. The earthquake occurred at a depth of 24.56 km (15 miles) below the earth’s surface.

In the past 24 hours, there have been nine, in the last 10 days nine, in the past 30 days nine and in the last 365 days twenty-nine earthquakes of magnitude 3.0 or greater that was reported nearby. 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.

Did you feel it?

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 data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 85 km WNW of Attu Station, Alaska.

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More information

Parameter Value Description
Magnitude 3.8 mb The magnitude for the event.
Longitude 171.9629° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.0659° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24.56 km Depth of the event in kilometers.
Place 85km WNW of Attu Station, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-18 21:18:21 Time when the event occurred. UTC/GMT
Updated 2017-08-02 02:37:51 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 222 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 ,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 1.337 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.03 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 167 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 us20009z6t Id of event.
Event Code 20009z6t An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20009z6t, A comma-separated list of event ids that are associated to an event.

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