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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.3 mag, 21 km WSW of Rota, Northern Mariana Islands


Earthquake location 14.1029S, 145.0064WA light earthquake magnitude 4.3 (ml/mb) has struck on Wednesday, 21 kilometers (13 miles) from Rota in Northern Mariana Islands. The 4.3-magnitude earthquake was detected at 04:15:57 / 4:15 am (local time epicenter). The earthquake occurred at a depth of 156.22 km (97 miles) below the earth’s surface. Exact time and date of earthquake 15/05/18 / 2018-05-15 18:15:57 / May 15, 2018 @ 6:15 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us1000e7zu. Id of event: us1000e7zu. Exact location of earthquake, 145.0064° East, 14.1029° North, depth 156.22 km.

Event epicenter was 68 km (42 miles) from Dededo Village (c. 44 900 pop), 64 km (40 miles) from Yigo Village (c. 20 500 pop), 73 km (45 miles) from Tamuning-Tumon-Harmon Village (c. 19 700 pop), 76 km (47 miles) from Mangilao Village (c. 15 200 pop), 74 km (46 miles) from Barrigada Village (c. 8 900 pop), 87 km (54 miles) from Santa Rita Village (c. 7 500 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Agat Village, Santa Rita Village, Talofofo Village. Nearby country/countries that might be effected, Guam (c. 159 000 pop).

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

How would you describe the shaking?

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: 21 km WSW of Rota, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 145.0064° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 14.1029° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 156.22 km Depth of the event in kilometers.
Place 21km WSW of Rota, 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 2018-05-15 18:15:57 Time when the event occurred. UTC/GMT
Updated 2018-06-08 21:58:25 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 284 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 0.527 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.29 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 114 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 us1000e7zu Id of event.
Event Code 1000e7zu An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000e7zu, A comma-separated list of event ids that are associated to an event.

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