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Strong earthquake, 6.9 mag was detected near Chichi-shima in Japan

Posted by admin on April 18, 2020 0 Comments

Earthquake location 27.2S, 140.7WA earthquake magnitude 6.9 (ml/mb) strikes 150 km W of Chichi-shima, Japan (93 miles) on Saturday. A tsunami warning has been issued near Chichi-shima in Japan (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 17:25:39 / 5:25 pm (local time epicenter). The earthquake occurred at a depth of 485 km (301 miles) below the earth’s surface. Id of earthquake: at00q8z62q. Event ids that are associated: pt20109000, at00q8z62q. Global date and time of event UTC/GMT: 18/04/20 / 2020-04-18 08:25:39 / April 18, 2020 @ 8:25 am. Exact location of event, depth 485 km, 140.7° East, 27.2° North.

Earthquakes 6.0 to 6.9 may cause a lot of damage in very populated areas. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days three and in the last 365 days fifteen earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 135 earthquakes in the world.

Did you feel the quake?

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: 150 km W of Chichi-shima, Japan.

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More information

Parameter Value Description
Magnitude 6.9 mb The magnitude for the event.
Longitude 140.7° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 27.2° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 485 km Depth of the event in kilometers.
Place 150km W 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 2020-04-18 08:25:39 Time when the event occurred. UTC/GMT
Updated 2020-04-18 08:38:01 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 1 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 732 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,pt,at, A comma-separated list of network contributors.
Number of Stations Used 90 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.83 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 39.599996832 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Mi The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID at00q8z62q Id of event.
Event Code 00q8z62q An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt20109000,at00q8z62q, A comma-separated list of event ids that are associated to an event.

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