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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag was detected near Hachijo-jima in Japan

Posted by admin on December 9, 2017 0 Comments

Earthquake location 31.672S, 139.5875WA light earthquake with magnitude 4.5 (ml/mb) was reported 157 km S of Hachijo-jima, Japan (98 miles) on Sunday. The epicenter of the earthquake was roughly 12.45 km (8 miles) below the earth’s surface. Global time and date of event 18/11/17 / 2017-11-18 21:58:49 / November 18, 2017 @ 9:58 pm UTC/GMT. Exact location of earthquake, longitude 139.5875 East, latitude 31.672 North, depth = 12.45 km. Id of earthquake: us2000buyz. Event ids that are associated: us2000buyz. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.5-magnitude earthquake has occurred at 06:58:49 / 6:58 am (local time epicenter).

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

Did you feel anything?

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: 157 km S of Hachijo-jima, Japan. 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 139.5875° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 31.672° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12.45 km Depth of the event in kilometers.
Place 157km S of Hachijo-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 2017-11-18 21:58:49 Time when the event occurred. UTC/GMT
Updated 2017-12-09 05:48:02 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 1.451 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.57 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 137 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 us2000buyz Id of event.
Event Code 2000buyz An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000buyz, A comma-separated list of event ids that are associated to an event.

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