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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag strikes near Iwo Jima in Japan

Posted by admin on October 25, 2017 0 Comments

Earthquake location 25.5096S, 140.9648WA light earthquake with magnitude 4.5 (ml/mb) was detected on Thursday, 88 km NNW of Iwo Jima, Japan (55 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 05/10/17 / 2017-10-05 08:49:38 / October 5, 2017 @ 8:49 am. The earthquake occurred at a depth of 146.53 km (91 miles) below the earth’s surface. Exact location of earthquake, longitude 140.9648 East, latitude 25.5096 North, depth = 146.53 km. Event ids that are associated to the earthquake: us1000aqrr. Id of event: us1000aqrr. The 4.5-magnitude earthquake has occurred at 17:49:38 / 5:49 pm (local time epicenter).

There are an estimated 13,000 light earthquakes in the world each year. 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 ten earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 88 km NNW of Iwo Jima, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 140.9648° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 25.5096° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 146.53 km Depth of the event in kilometers.
Place 88km NNW of Iwo Jima, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-10-05 08:49:38 Time when the event occurred. UTC/GMT
Updated 2017-10-25 07:47:42 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 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 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.921 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.03 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 129 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 us1000aqrr Id of event.
Event Code 1000aqrr An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000aqrr, A comma-separated list of event ids that are associated to an event.

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