Light earthquake, 4.2 mag was detected near Oarai in Japan

Posted by admin on January 17, 2018 0 Comments

A light earthquake with magnitude 4.2 (ml/mb) was reported 35 kilometers (22 miles) from Oarai in Japan on Thursday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 03/01/18 / 2018-01-03 19:29:31 / January 3, 2018 @ 7:29 pm. The 4.2-magnitude earthquake was detected at 04:29:31 / 4:29 am (local time epicenter). Id of earthquake: us2000ckef. Event ids that are associated: us2000ckef. Exact location, longitude 140.9751° East, latitude 36.2262° North, depth = 35 km. The earthquake occurred at a depth of 35 km (22 miles) below the earth’s surface.

Epicenter of the earthquake was 92 km (57 miles) from Iwaki (c. 357 300 pop), 49 km (30 miles) from Mito-shi (c. 246 500 pop), 51 km (32 miles) from Hitachi (c. 186 300 pop), 88 km (54 miles) from Sakura (c. 182 500 pop), 79 km (49 miles) from Tsukuba (c. 175 600 pop), 44 km (27 miles) from Hitachi-Naka (c. 156 800 pop). Close country/countries, Japan (c. 127 288 000 pop) (That might be effected). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Tōgane, Mitsukaidō, Iwaki.

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

Questions or comments?

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: 35 km ESE of Oarai, Japan.

More information

Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	140.9751° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	36.2262° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	35 km	Depth of the event in kilometers.
Place	35km ESE of Oarai, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-01-03 19:29:31	Time when the event occurred. UTC/GMT
Updated	2018-01-17 23:26:30	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	271	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	1.646	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.72 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	156	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	us2000ckef	Id of event.
Event Code	2000ckef	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us2000ckef,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.2 mag was detected near Oarai in Japan

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