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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.4 quake has struck near Saipan in Northern Mariana Islands


Earthquake location 18.2118S, 145.7168WA light earthquake magnitude 4.4 (ml/mb) strikes 331 km N of Saipan, Northern Mariana Islands (206 miles) on Monday. The 4.4-magnitude earthquake has occurred at 09:04:57 / 9:04 am (local time epicenter). Exact location, longitude 145.7168° East, latitude 18.2118° North, depth = 105 km. The epicenter of the earthquake was roughly 105 km (65 miles) below the earth’s surface. Exact time and date of earthquake 18/05/20 / 2020-05-18 09:04:57 / May 18, 2020 @ 9:04 am UTC/GMT. Unique identifier: us70009ni0. Ids that are associated to the event: us70009ni0. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

There are an estimated 13,000 light quakes in the world each year. 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 ten and in the last 365 days seventy-two earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 331 km N of Saipan, Northern Mariana Islands. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 145.7168° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.2118° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 105 km Depth of the event in kilometers.
Place 331 km N of Saipan, 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 2020-05-18 09:04:57 Time when the event occurred. UTC/GMT
Updated 2020-06-16 12:08:30 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 298 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 2.955 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.75 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 149 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 us70009ni0 Id of event.
Event Code 70009ni0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70009ni0, A comma-separated list of event ids that are associated to an event.

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