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Light earthquake, 4.5 mag was detected near Bonin Islands, Japan region

Posted by admin on April 9, 2025 0 Comments

Earthquake location 27.8711S, 139.717WA light earthquake magnitude 4.5 (ml/mb) has occurred on Wednesday, Bonin Islands, Japan region (0 miles). Event id: us6000q4vq. Ids that are associated to the earthquake: us6000q4vq. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 504.172 km (313 miles). The 4.5-magnitude earthquake was detected at 06:21:56 / 6:21 am (local time epicenter). Exact location of earthquake, longitude 139.717 East, latitude 27.8711 North, depth = 504.172 km. Date and time of earthquake in UTC/GMT: 09/04/25 / 2025-04-09 06:21:56 / April 9, 2025 @ 6:21 am.

There are an estimated 13,000 light earthquakes 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 one, in the last 10 days one, in the past 30 days one and in the last 365 days twenty earthquakes of magnitude 3.0 or greater that has struck near.

How would you describe the shaking?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: Bonin Islands, Japan region. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 139.717° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 27.8711° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 504.172 km Depth of the event in kilometers.
Place Bonin Islands, Japan region Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-04-09 06:21:56 Time when the event occurred. UTC/GMT
Updated 2025-04-09 06:38:47 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 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 81 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.324 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.64 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 66 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 us6000q4vq Id of event.
Event Code 6000q4vq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000q4vq, A comma-separated list of event ids that are associated to an event.

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