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Light earthquake: M4.7 quake has struck near Ishigaki in Japan

Posted by admin on October 22, 2020 0 Comments

Earthquake location 23.9724S, 123.5525WA light earthquake magnitude 4.7 (ml/mb) has struck on Thursday, 74 kilometers (46 miles) from Ishigaki in Japan. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 35.14 km (22 miles) below the earth’s surface. Exact time and date of earthquake 22/10/20 / 2020-10-22 07:14:17 / October 22, 2020 @ 7:14 am UTC/GMT. Event ids that are associated to the earthquake: us6000cb7p. Id of event: us6000cb7p. The 4.7-magnitude earthquake has occurred at 07:14:17 / 7:14 am (local time epicenter). Exact location of earthquake, 123.5525° East, 23.9724° North, depth 35.14 km.

Country/countries that might be effected, Japan (c. 127 288 000 pop). Earthquake epicenter was 74 km (46 miles) from Ishigaki (c. 44 800 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Ishigaki.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days seventy-one earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 13,000 light quakes in the world.

Did you feel the quake?

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. 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: 74 km SW of Ishigaki, Japan.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude 123.5525° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 23.9724° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35.14 km Depth of the event in kilometers.
Place 74 km SW of Ishigaki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-10-22 07:14:17 Time when the event occurred. UTC/GMT
Updated 2020-10-22 09:13:20 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 340 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 0.697 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.69 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 57 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 us6000cb7p Id of event.
Event Code 6000cb7p An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000cb7p, A comma-separated list of event ids that are associated to an event.

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