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Light earthquake, 4.4 mag has occurred near Iwaki in Japan

Posted by admin on April 23, 2017 0 Comments

A light earthquake with magnitude 4.4 (ml/mb) was reported 34 kilometers (21 miles) from Iwaki in Japan on Sunday. The temblor was detected at 19:09:18 / 7:09 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 23/04/17 / 2017-04-23 10:09:18 / April 23, 2017 @ 10:09 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude 141.2148° East, latitude 37.2049° North, depth = 38.62 km. The earthquake was roughly at a depth of 38.62 km (24 miles). All ids that are associated to the event: us10008jzu. Unique identifier: us10008jzu.

Nearest cities/city/villages to epicentrum/hypocenter was Kakuda, Daigo, Yanagawamachi-saiwaichō (min 5000 pop). Country/countries that might be effected, Japan (c. 127 288 000 pop). Event epicenter was 34 km (21 miles) from Iwaki (c. 357 300 pop), 77 km (48 miles) from Kōriyama (c. 340 600 pop), 90 km (56 miles) from Fukushima-shi (c. 294 200 pop), 84 km (52 miles) from Hitachi (c. 186 300 pop), 74 km (46 miles) from Sukagawa (c. 68 800 pop), 62 km (39 miles) from Kitaibaraki (c. 50 800 pop).

Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days six and in the last 365 days one hundred and fifty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

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: 34 km ENE of Iwaki, Japan.

More information

Parameter	Value	Description
Magnitude	4.4 mb	The magnitude for the event.
Longitude	141.2148° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	37.2049° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	38.62 km	Depth of the event in kilometers.
Place	34km ENE 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	2017-04-23 10:09:18	Time when the event occurred. UTC/GMT
Updated	2017-04-23 23:00:07	Time when the event was most recently updated. UTC/GMT
Timezone offset	540	Timezone offset from UTC in minutes at the event epicenter.
Felt	1	The total number of felt reports
CDI	2	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	298	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	0.744	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.98 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	142	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	us10008jzu	Id of event.
Event Code	10008jzu	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us10008jzu,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.4 mag has occurred near Iwaki in Japan

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