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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 March 4, 2018 0 Comments

Earthquake location 28.872S, 142.6645WA light earthquake with magnitude 4.5 (ml/mb) was detected on Tuesday, 203 km NNE of Chichi-shima, Japan (126 miles). All ids that are associated to the event: us2000d58n. Unique identifier: us2000d58n. The epicenter of the earthquake was roughly 20.76 km (13 miles) below the earth’s surface. The 4.5-magnitude earthquake was detected at 18:20:53 / 6:20 pm (local time epicenter). Exact time and date of earthquake 20/02/18 / 2018-02-20 08:20:53 / February 20, 2018 @ 8:20 am UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude 142.6645° East, latitude 28.872° North, depth = 20.76 km.

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-one earthquakes of magnitude 3.0 or greater that was reported nearby. 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.

Did you feel it?

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. 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: 203 km NNE of Chichi-shima, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 142.6645° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 28.872° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20.76 km Depth of the event in kilometers.
Place 203km NNE 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 2018-02-20 08:20:53 Time when the event occurred. UTC/GMT
Updated 2018-03-04 11:14:03 Time when the event was most recently updated. UTC/GMT
Timezone offset 600 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 1.819 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.79 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 144 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 us2000d58n Id of event.
Event Code 2000d58n An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000d58n, A comma-separated list of event ids that are associated to an event.

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