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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.5 mag, 84 km NNE of Anatahan, Northern Mariana Islands

Posted by admin on October 13, 2015 0 Comments

Earthquake location 17.0733S, 145.9499WA light earthquake with magnitude 4.5 (ml/mb) was reported 84 km NNE of Anatahan, Northern Mariana Islands (52 miles) on Monday. Exact time and date of event in UTC/GMT: 28/09/15 / 2015-09-28 01:38:00 / September 28, 2015 @ 1:38 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 145.9499 East, latitude 17.0733 North, depth = 10 km. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Event id: us10003mgt. Ids that are associated to the earthquake: us10003mgt. The 4.5-magnitude earthquake has occurred at 11:38:00 / 11:38 am (local time epicenter).

Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days four and in the last 365 days twenty-one earthquakes of magnitude 3.0 or greater that has struck near. 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: 84 km NNE of Anatahan, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 145.9499° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.0733° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 84km NNE of Anatahan, 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 2015-09-28 01:38:00 Time when the event occurred. UTC/GMT
Updated 2015-10-13 03:20:38 Time when the event was most recently updated. UTC/GMT
Timezone offset 600 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 312 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 0.763 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.13 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 82 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 us10003mgt Id of event.
Event Code 10003mgt An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003mgt, A comma-separated list of event ids that are associated to an event.

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