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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4 quake has struck near Pagan in Northern Mariana Islands

Posted by admin on July 23, 2018 0 Comments

Earthquake location 17.8463S, 145.5235WA light earthquake with magnitude 4 (ml/mb) was detected on Friday, 39 km SW of Pagan, Northern Mariana Islands (24 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 12/07/18 / 2018-07-12 23:43:54 / July 12, 2018 @ 11:43 pm UTC/GMT. Unique identifier: us2000g7yb. Ids that are associated to the event: us2000g7yb. The 4-magnitude earthquake was detected at 09:43:54 / 9:43 am (local time epicenter). Exact location of earthquake, longitude 145.5235 East, latitude 17.8463 North, depth = 299.57 km. The earthquake occurred at a depth of 299.57 km (186 miles).

In the past 24 hours, there have been two, in the last 10 days four, in the past 30 days eight and in the last 365 days fifty-six earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year.

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 39 km SW of Pagan, Northern Mariana Islands. This information 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 145.5235° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.8463° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 299.57 km Depth of the event in kilometers.
Place 39km SW of Pagan, 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 2018-07-12 23:43:54 Time when the event occurred. UTC/GMT
Updated 2018-07-23 04:59:39 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 246 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 2.603 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.55 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 128 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 us2000g7yb Id of event.
Event Code 2000g7yb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000g7yb, A comma-separated list of event ids that are associated to an event.

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