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Light earthquake, 4 mag was detected near Haines in Alaska



Earthquake location 58.9911S, -136.3938WA light earthquake magnitude 4 (ml/mb) has struck on Thursday, 60 km WSW of Haines, Alaska (37 miles). Global date and time of event UTC/GMT: 18/08/17 / 2017-08-18 04:44:36 / August 18, 2017 @ 4:44 am. The earthquake occurred at a depth of 3.8 km (2 miles). A tsunami warning has been issued near Haines in Alaska (Does not indicate if a tsunami actually did or will exist). Event id: ak16550557. Ids that are associated to the earthquake: at00ouv6ib, ak16550557. Exact location of earthquake, -136.3938° West, 58.9911° North, depth 3.8 km. The 4-magnitude earthquake has occurred at 19:44:36 / 7:44 pm (local time epicenter).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days nine and in the last 365 days two hundred and fourty earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel the quake?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 60 km WSW of Haines, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -136.3938° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 58.9911° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 3.8 km Depth of the event in kilometers.
Place 60km WSW of Haines, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-08-18 04:44:36 Time when the event occurred. UTC/GMT
Updated 2017-08-18 04:58:31 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt 45 The total number of felt reports
CDI 3.2 The maximum reported intensity for the event.
MMI 4.03 The maximum estimated instrumental intensity for the event.
Alert Level green 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 261 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 0.65 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 ak16550557 Id of event.
Event Code 16550557 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00ouv6ib,ak16550557, A comma-separated list of event ids that are associated to an event.

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