Minor earthquake: M3.7 quake has struck near Atka in Alaska

A minor earthquake with magnitude 3.7 (ml/mb) was reported 30 km NNE of Atka, Alaska (19 miles) on Saturday. The earthquake occurred at a depth of 161.59 km (100 miles). Event ids that are associated to the earthquake: ak01998qecys, us600054e5. Id of event: us600054e5. The 3.7-magnitude earthquake was detected at 09:11:03 / 9:11 am (local time epicenter). Exact location of event, longitude -173.9661 West, latitude 52.4324 North, depth = 161.59 km. Date and time of earthquake in UTC/GMT: 20/07/19 / 2019-07-20 19:11:03 / July 20, 2019 @ 7:11 pm.

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

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. 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: 30 km NNE of Atka, Alaska.

Alaska Atka

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Parameter	Value	Description
Magnitude	3.7 mb	The magnitude for the event.
Longitude	-173.9661° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	52.4324° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	161.59 km	Depth of the event in kilometers.
Place	30km NNE of Atka, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2019-07-20 19:11:03	Time when the event occurred. UTC/GMT
Updated	2019-08-18 00:30:26	Time when the event was most recently updated. UTC/GMT
Timezone offset	-600	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	211	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	0.271	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.69 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	137	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	us600054e5	Id of event.
Event Code	600054e5	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak01998qecys,us600054e5,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.7 quake has struck near Atka in Alaska

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