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Light earthquake, 4.6 mag strikes near Hotaka in Japan

Posted by admin on April 23, 2020 0 Comments

Earthquake location 36.2191S, 137.6497WA light earthquake magnitude 4.6 (ml/mb) has struck on Thursday, 24 kilometers (15 miles) from Hotaka in Japan. Global date and time of event UTC/GMT: 23/04/20 / 2020-04-23 04:57:55 / April 23, 2020 @ 4:57 am. All ids that are associated to the event: us60009ac4. Unique identifier: us60009ac4. Exact location of event, longitude 137.6497 East, latitude 36.2191 North, depth = 3.09 km. The earthquake occurred at a depth of 3.09 km (2 miles) below the earth’s surface. The temblor was picked up at 13:57:55 / 1:57 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Nearest cities/city/villages to epicentrum/hypocenter was Tsubata, Iiyama, Tsurugi-asahimachi (min 5000 pop). The epicenter was 68 km (42 miles) from Nagano-shi (c. 360 200 pop), 66 km (41 miles) from Toyama-shi (c. 325 500 pop), 28 km (18 miles) from Matsumoto (c. 210 700 pop), 82 km (51 miles) from Takaoka (c. 170 100 pop), 60 km (37 miles) from Ueda (c. 126 600 pop), 79 km (49 miles) from Iida (c. 107 100 pop), 75 km (46 miles) from Saku (c. 68 900 pop). Nearby country/countries that might be effected, Japan (c. 127 288 000 pop).

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days two and in the last 365 days two 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.

Questions or comments?

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: 24 km WSW of Hotaka, Japan.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 137.6497° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.2191° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 3.09 km Depth of the event in kilometers.
Place 24km WSW of Hotaka, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-04-23 04:57:55 Time when the event occurred. UTC/GMT
Updated 2020-04-23 05:51:03 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 326 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 0.553 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.93 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 74 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 us60009ac4 Id of event.
Event Code 60009ac4 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us60009ac4, A comma-separated list of event ids that are associated to an event.

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