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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.9 mag strikes near Agrihan in Northern Mariana Islands



Earthquake location 19.0273S, 144.7641WA light earthquake with magnitude 4.9 (ml/mb) was reported 99 km WNW of Agrihan, Northern Mariana Islands (62 miles) on Friday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 35 km, 144.7641° East, 19.0273° North. The temblor was reported at 09:56:58 / 9:56 am (local time epicenter). Date and time of earthquake in UTC/GMT: 28/09/17 / 2017-09-28 23:56:58 / September 28, 2017 @ 11:56 pm. Id of earthquake: us2000awbb. Event ids that are associated: us2000awbb. The epicenter was at a depth of 35 km (22 miles).

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

Questions or comments?

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: 99 km WNW of Agrihan, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.9 mb The magnitude for the event.
Longitude 144.7641° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.0273° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 99km WNW of Agrihan, Northern Mariana Islands Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-09-28 23:56:58 Time when the event occurred. UTC/GMT
Updated 2017-09-29 00:57:48 Time when the event was most recently updated. UTC/GMT
Timezone offset 600 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 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 369 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, 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 5.408 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.62 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 97 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000awbb Id of event.
Event Code 2000awbb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000awbb, A comma-separated list of event ids that are associated to an event.

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