Moderate earthquake: M5.1 quake has struck near Adak in Alaska

A moderate earthquake magnitude 5.1 (ml/mb) has struck on Monday, 97 km SSW of Adak, Alaska (60 miles). Exact location of event, longitude -177.055 West, latitude 51.039 North, depth = 17 km. Event id: at00opogyh. Ids that are associated to the earthquake: at00opogyh. A tsunami warning has been issued near Adak in Alaska (Does not indicate if a tsunami actually did or will exist). Global time and date of event 09/05/17 / 2017-05-09 08:59:05 / May 9, 2017 @ 8:59 am UTC/GMT. The temblor was picked up at 20:59:05 / 8:59 pm (local time epicenter). The earthquake was roughly at a depth of 17 km (11 miles).

In the past 24 hours, there have been sixteen, in the last 10 days twenty, in the past 30 days twenty-three and in the last 365 days one hundred and ninety-two earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 1320 moderate quakes in the world. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures.

Questions or comments?

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: 97 km SSW of Adak, Alaska.

Adak Alaska

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Parameter	Value	Description
Magnitude	5.1 mb	The magnitude for the event.
Longitude	-177.055° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.039° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	17 km	Depth of the event in kilometers.
Place	97km SSW of Adak, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-05-09 08:59:05	Time when the event occurred. UTC/GMT
Updated	2017-05-09 09:03:17	Time when the event was most recently updated. UTC/GMT
Timezone offset	-720	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	1	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	400	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	at	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,at,	A comma-separated list of network contributors.
Number of Stations Used	23	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.8749591	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.17 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	212.399983008	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	Mi	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	at00opogyh	Id of event.
Event Code	00opogyh	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,at00opogyh,	A comma-separated list of event ids that are associated to an event.

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Moderate earthquake: M5.1 quake has struck near Adak in Alaska

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