Moderate earthquake, 5.1 mag was detected near Willow in Alaska

A moderate earthquake with magnitude 5.1 (ml/mb) was reported 43 kilometers (27 miles) from Willow in Alaska on Monday. Exact location, longitude -150.8616° West, latitude 61.7161° North, depth = 55.5 km. Exact time and date of event in UTC/GMT: 17/09/19 / 2019-09-17 01:09:55 / September 17, 2019 @ 1:09 am. A tsunami warning has been issued near Willow in Alaska (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: at00pxyb8j, ak019by0dpof. Id of event: ak019by0dpof. The temblor was picked up at 16:09:55 / 4:09 pm (local time epicenter). The earthquake occurred at a depth of 55.5 km (34 miles) below the earth’s surface.

Close country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Palmer, Gateway, Elmendorf Air Force Base (min 5000 pop). The epicenter was 75 km (47 miles) from Anchorage (c. 291 800 pop), 81 km (51 miles) from Eagle River (c. 24 800 pop), 70 km (44 miles) from Knik-Fairview (c. 14 900 pop), 83 km (51 miles) from Lakes (c. 8 400 pop), 76 km (47 miles) from Tanaina (c. 8 200 pop), 77 km (48 miles) from Wasilla (c. 7 800 pop), 67 km (42 miles) from Meadow Lakes (c. 7 600 pop).

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days eleven and in the last 365 days five hundred and fifty-five earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 1320 moderate quakes in the world each year.

How would you describe the shaking?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 43 km W of Willow, Alaska.

Alaska Anchorage Eagle River Elmendorf Air Force Base Gateway Knik-Fairview Lakes Meadow Lakes Palmer Tanaina United States Wasilla Willow

More information

Parameter	Value	Description
Magnitude	5.1 mb	The magnitude for the event.
Longitude	-150.8616° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	61.7161° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	55.5 km	Depth of the event in kilometers.
Place	43km W of Willow, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2019-09-17 01:09:55	Time when the event occurred. UTC/GMT
Updated	2019-09-17 01:17:02	Time when the event was most recently updated. UTC/GMT
Timezone offset	-540	Timezone offset from UTC in minutes at the event epicenter.
Felt	35	The total number of felt reports
CDI	4.3	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	automatic	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	415	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	ak	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,at,ak,	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		Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.72 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap		The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	ml	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	ak019by0dpof	Id of event.
Event Code	019by0dpof	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,at00pxyb8j,ak019by0dpof,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

5.1 mb

The magnitude for the event.

Longitude

-150.8616° West

Decimal degrees longitude. Negative values for western longitudes.

Latitude

61.7161° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

55.5 km

Depth of the event in kilometers.

Place

43km W of Willow, Alaska

Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.

Time

2019-09-17 01:09:55

Time when the event occurred. UTC/GMT

Updated

2019-09-17 01:17:02

Time when the event was most recently updated. UTC/GMT

Timezone offset

-540

Timezone offset from UTC in minutes at the event epicenter.

Felt

The total number of felt reports

CDI

4.3

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

automatic

Indicates whether the event has been reviewed by a human.

Tsunami

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

415

A number describing how significant the event is. Larger numbers indicate a more significant event.

Network

The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.

Sources

,at,ak,

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

Horizontal distance from the epicenter to the nearest station (in degrees).

Root Mean Square

0.72 sec

The root-mean-square (RMS) travel time residual, in sec, using all weights.

Azimuthal Gap

The largest azimuthal gap between azimuthally adjacent stations (in degrees).

Magnitude Type

The method or algorithm used to calculate the preferred magnitude for the event.

Event Type

earthquake

Type of seismic event.

Event ID

ak019by0dpof

Id of event.

Event Code

019by0dpof

An identifying code assigned by, and unique from, the corresponding source for the event.

Event IDS

,at00pxyb8j,ak019by0dpof,

A comma-separated list of event ids that are associated to an event.

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Moderate earthquake, 5.1 mag was detected near Willow in Alaska

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