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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag was detected near Chichi-shima in Japan

Posted by admin on November 2, 2018 0 Comments

Earthquake location 27.9283S, 139.6479WA light earthquake magnitude 4 (ml/mb) has occurred on Sunday, 270 km WNW of Chichi-shima, Japan (168 miles). Event id: us1000hb3q. Ids that are associated to the earthquake: us1000hb3q. Global time and date of event 07/10/18 / 2018-10-07 08:58:59 / October 7, 2018 @ 8:58 am UTC/GMT. The temblor was reported at 17:58:59 / 5:58 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, 139.6479° East, 27.9283° North, depth 510.62 km. The epicenter of the earthquake was roughly 510.62 km (317 miles) below the earth’s surface.

There are an estimated 13,000 light quakes 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 eighteen 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?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. 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: 270 km WNW of Chichi-shima, Japan.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 139.6479° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 27.9283° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 510.62 km Depth of the event in kilometers.
Place 270km WNW 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 2018-10-07 08:58:59 Time when the event occurred. UTC/GMT
Updated 2018-11-02 09:34:19 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 246 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 2.4 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.75 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 60 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 us1000hb3q Id of event.
Event Code 1000hb3q An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000hb3q, A comma-separated list of event ids that are associated to an event.

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