Minor earthquake 3.9 mag, 227 km WNW of Attu Station, Alaska

A minor earthquake magnitude 3.9 (ml/mb) has struck on Thursday, 227 km WNW of Attu Station, Alaska (141 miles). The epicenter was at a depth of 10 km (6 miles). Exact time and date of earthquake 26/07/17 / 2017-07-26 15:42:12 / July 26, 2017 @ 3:42 pm UTC/GMT. Unique identifier: us2000a371. Ids that are associated to the event: us2000a371. The temblor was picked up at 02:42:12 / 2:42 am (local time epicenter). Exact location of event, depth 10 km, 170.1536° East, 53.7755° North.

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

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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: 227 km WNW of Attu Station, Alaska.

Alaska Attu Station

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Parameter	Value	Description
Magnitude	3.9 mb	The magnitude for the event.
Longitude	170.1536° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	53.7755° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	227km 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	2017-07-26 15:42:12	Time when the event occurred. UTC/GMT
Updated	2017-08-03 00:44:57	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	234	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	2.591	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.13 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	156	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	us2000a371	Id of event.
Event Code	2000a371	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us2000a371,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.9 mag, 227 km WNW of Attu Station, Alaska

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