Light earthquake, 4.6 mag strikes near Iiyama in Japan

A light earthquake with magnitude 4.6 (ml/mb) was reported 3 kilometers (2 miles) from Iiyama in Japan on Saturday. Date and time of earthquake in UTC/GMT: 27/05/17 / 2017-05-27 11:59:40 / May 27, 2017 @ 11:59 am. The earthquake occurred at a depth of 1.64 km (1 miles) below the earth’s surface. The temblor was picked up at 20:59:40 / 8:59 pm (local time epicenter). All ids that are associated to the event: us10008vsc. Unique identifier: us10008vsc. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude 138.3968° East, latitude 36.8275° North, depth = 1.64 km.

Closest city/cities/towns to epicentrum/hypocenter was Kodamachō-kodamaminami, Honjō, Kiryū (min 5000 pop). Nearby country/countries, Japan (c. 127 288 000 pop) (That might be effected). Earthquake epicenter was 27 km (17 miles) from Nagano-shi (c. 360 200 pop), 77 km (48 miles) from Maebashi-shi (c. 282 700 pop), 78 km (48 miles) from Takasaki (c. 240 900 pop), 76 km (47 miles) from Matsumoto (c. 210 700 pop), 38 km (24 miles) from Jōetsu (c. 204 100 pop), 80 km (50 miles) from Nagaoka (c. 195 300 pop), 91 km (57 miles) from Isesaki (c. 130 700 pop).

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

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. 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: 3 km SE of Iiyama, Japan.

More information

Parameter	Value	Description
Magnitude	4.6 mb	The magnitude for the event.
Longitude	138.3968° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	36.8275° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	1.64 km	Depth of the event in kilometers.
Place	3km SE of Iiyama, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-05-27 11:59:40	Time when the event occurred. UTC/GMT
Updated	2017-05-27 12:23:38	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	0.321	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.51 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	124	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	us10008vsc	Id of event.
Event Code	10008vsc	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us10008vsc,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

4.6 mb

The magnitude for the event.

Longitude

138.3968° East

Decimal degrees longitude. Negative values for western longitudes.

Latitude

36.8275° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

1.64 km

Depth of the event in kilometers.

Place

3km SE of Iiyama, Japan

Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.

Time

2017-05-27 11:59:40

Time when the event occurred. UTC/GMT

Updated

2017-05-27 12:23:38

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

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

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

0.321

Horizontal distance from the epicenter to the nearest station (in degrees).

Root Mean Square

0.51 sec

The root-mean-square (RMS) travel time residual, in sec, using all weights.

Azimuthal Gap

124

The largest azimuthal gap between azimuthally adjacent stations (in degrees).

Magnitude Type

The method or algorithm used to calculate the preferred magnitude for the event.

Event Type

earthquake

Type of seismic event.

Event ID

us10008vsc

Id of event.

Event Code

10008vsc

An identifying code assigned by, and unique from, the corresponding source for the event.

Event IDS

,us10008vsc,

A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.6 mag strikes near Iiyama in Japan

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