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Moderate earthquake, 5 mag strikes near Attu Station in Alaska

Earthquake location 53.581S, 170.7WA moderate earthquake magnitude 5 (ml/mb) has struck on Sunday, 185 km WNW of Attu Station, Alaska (115 miles). The epicenter was at a depth of 21 km (13 miles). Exact location, longitude 170.7° East, latitude 53.581° North, depth = 21 km. The temblor was reported at 15:10:06 / 3:10 pm (local time epicenter). Id of earthquake: at00otizku. Event ids that are associated: at00otizku. Exact time and date of earthquake 23/07/17 / 2017-07-23 04:10:06 / July 23, 2017 @ 4:10 am UTC/GMT. A tsunami warning has been issued near Attu Station in Alaska (Does not indicate if a tsunami actually did or will exist).

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 twelve, in the past 30 days thirteen and in the last 365 days twenty-nine earthquakes of magnitude 3.0 or greater that has occurred nearby. Every year there are an estimated 1320 moderate earthquakes in the world.

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. 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: 185 km WNW of Attu Station, Alaska.

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More information

Parameter Value Description
Magnitude 5 mb The magnitude for the event.
Longitude 170.7° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.581° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 21 km Depth of the event in kilometers.
Place 185km WNW of Attu Station, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-23 04:10:06 Time when the event occurred. UTC/GMT
Updated 2017-07-23 04:17:17 Time when the event was most recently updated. UTC/GMT
Timezone offset 660 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 385 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 70 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.216144 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.31 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 133.199989344 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 at00otizku Id of event.
Event Code 00otizku An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00otizku, A comma-separated list of event ids that are associated to an event.

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