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Light earthquake, 4.4 mag was detected near Mariana Islands region

Posted by admin on April 18, 2025 0 Comments

Earthquake location 21.622S, 143.0976WA light earthquake with magnitude 4.4 (ml/mb) was reported Mariana Islands region (0 miles) on Friday. Exact location, longitude 143.0976° East, latitude 21.622° North, depth = 297.007 km. The temblor was reported at 15:16:24 / 3:16 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 297.007 km (185 miles). Exact time and date of event in UTC/GMT: 18/04/25 / 2025-04-18 15:16:24 / April 18, 2025 @ 3:16 pm. Id of earthquake: us6000q717. Event ids that are associated: us6000q717.

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days thirty-four 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.

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. 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: Mariana Islands region.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 143.0976° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 21.622° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 297.007 km Depth of the event in kilometers.
Place Mariana Islands region Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-04-18 15:16:24 Time when the event occurred. UTC/GMT
Updated 2025-04-18 15:30:37 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 38 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 5.512 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.86 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 121 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 us6000q717 Id of event.
Event Code 6000q717 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000q717, A comma-separated list of event ids that are associated to an event.

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