Light earthquake, 4 mag strikes near Skagway in Alaska

A light earthquake with magnitude 4 (ml/mb) was reported 85 km WNW of Skagway, Alaska (53 miles) on Monday. The earthquake was roughly at a depth of 1 km (1 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4-magnitude earthquake has occurred at 06:35:40 / 6:35 am (local time epicenter). Global date and time of event UTC/GMT: 01/05/17 / 2017-05-01 14:35:40 / May 1, 2017 @ 2:35 pm. Event id: ak15854932. Ids that are associated to the earthquake: ak15854932. Exact location of earthquake, -136.7077° West, 59.7697° North, depth 1 km.

In the past 24 hours, there have been nineteen, in the last 10 days nineteen, in the past 30 days twenty and in the last 365 days thirty-two earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 85 km WNW of Skagway, Alaska.

Alaska Skagway

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Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	-136.7077° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	59.7697° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	1 km	Depth of the event in kilometers.
Place	85km WNW of Skagway, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-05-01 14:35:40	Time when the event occurred. UTC/GMT
Updated	2017-05-01 14:39:06	Time when the event was most recently updated. UTC/GMT
Timezone offset	-480	Timezone offset from UTC in minutes at the event epicenter.
Felt	7	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	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	249	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	,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	0.8 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	ak15854932	Id of event.
Event Code	15854932	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak15854932,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4 mag strikes near Skagway in Alaska

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