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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag strikes near Chichi-shima in Japan

Posted by admin on January 2, 2018 0 Comments

Earthquake location 29.2695S, 142.4754WA light earthquake with magnitude 4.5 (ml/mb) was detected on Saturday, 243 km N of Chichi-shima, Japan (151 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 08/12/17 / 2017-12-08 19:19:28 / December 8, 2017 @ 7:19 pm. The temblor was picked up at 04:19:28 / 4:19 am (local time epicenter). The earthquake occurred at a depth of 24.86 km (15 miles). Exact location of earthquake, longitude 142.4754 East, latitude 29.2695 North, depth = 24.86 km. Event id: us2000c4g9. Ids that are associated to the earthquake: us2000c4g9.

In the past 24 hours, there have been seven, in the last 10 days eight, in the past 30 days nine and in the last 365 days nineteen 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. There are an estimated 13,000 light earthquakes in the world each year.

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 243 km N of Chichi-shima, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 142.4754° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 29.2695° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24.86 km Depth of the event in kilometers.
Place 243km N of Chichi-shima, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-12-08 19:19:28 Time when the event occurred. UTC/GMT
Updated 2018-01-02 22:17:52 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 2.18 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.95 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 142 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 us2000c4g9 Id of event.
Event Code 2000c4g9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000c4g9, A comma-separated list of event ids that are associated to an event.

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