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Light earthquake 4.5 mag, 17 km WSW of Iwaki, Japan

Posted by admin on February 4, 2021 0 Comments

Earthquake location 36.9816S, 140.7114WA light earthquake magnitude 4.5 (ml/mb) has occurred on Thursday, 17 kilometers (11 miles) from Iwaki in Japan. Exact location of earthquake, longitude 140.7114 East, latitude 36.9816 North, depth = 56.64 km. The epicenter was at a depth of 56.64 km (35 miles). All ids that are associated to the event: us6000decf. Unique identifier: us6000decf. Date and time of earthquake in UTC/GMT: 04/02/21 / 2021-02-04 03:40:14 / February 4, 2021 @ 3:40 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 03:40:14 / 3:40 am (local time epicenter).

Nearest cities/city/villages to epicentrum/hypocenter was Imaichi, Hobaramachi, Kaminokawa (min 5000 pop). Earthquake epicenter was 87 km (54 miles) from Utsunomiya-shi (c. 449 900 pop), 17 km (11 miles) from Iwaki (c. 357 300 pop), 55 km (34 miles) from Kōriyama (c. 340 600 pop), 88 km (55 miles) from Fukushima-shi (c. 294 200 pop), 75 km (47 miles) from Mito-shi (c. 246 500 pop), 43 km (27 miles) from Hitachi (c. 186 300 pop), 67 km (42 miles) from Hitachi-Naka (c. 156 800 pop). Close country/countries that might be effected, Japan (c. 127 288 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. 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 two, in the past 30 days six and in the last 365 days fifty-seven earthquakes of magnitude 3.0 or greater that has struck near.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 17 km WSW of Iwaki, Japan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 140.7114° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.9816° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 56.64 km Depth of the event in kilometers.
Place 17 km WSW of Iwaki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-02-04 03:40:14 Time when the event occurred. UTC/GMT
Updated 2021-02-04 04:24:00 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 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 2.059 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.73 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 171 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 us6000decf Id of event.
Event Code 6000decf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000decf, A comma-separated list of event ids that are associated to an event.

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