Light earthquake: M4.7 quake has struck near Oarai in Japan

A light earthquake magnitude 4.7 (ml/mb) has struck on Monday, 53 kilometers (33 miles) from Oarai in Japan. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 141.1929 East, latitude 36.3668 North, depth = 33.02 km. The earthquake occurred at a depth of 33.02 km (21 miles) below the earth’s surface. Global date and time of event UTC/GMT: 04/05/20 / 2020-05-04 13:34:32 / May 4, 2020 @ 1:34 pm. The 4.7-magnitude earthquake was detected at 22:34:32 / 10:34 pm (local time epicenter). Id of earthquake: us700099sl. Event ids that are associated: us700099sl.

The epicenter was 81 km (50 miles) from Iwaki (c. 357 300 pop), 67 km (42 miles) from Mito-shi (c. 246 500 pop), 55 km (34 miles) from Hitachi (c. 186 300 pop), 59 km (37 miles) from Hitachi-Naka (c. 156 800 pop), 59 km (37 miles) from Katsuta (c. 156 000 pop), 81 km (50 miles) from Katori-shi (c. 83 200 pop), 66 km (41 miles) from Kashima-shi (c. 65 800 pop). Nearest cities/city/villages to epicentrum/hypocenter was Naka, Makabe, Mashiko (min 5000 pop). Close country/countries, Japan (c. 127 288 000 pop) (That might be effected).

In the past 24 hours, there have been two, in the last 10 days four, in the past 30 days eleven and in the last 365 days sixty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 53 km E of Oarai, Japan.

More information

Parameter	Value	Description
Magnitude	4.7 mb	The magnitude for the event.
Longitude	141.1929° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	36.3668° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	33.02 km	Depth of the event in kilometers.
Place	53km E 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	2020-05-04 13:34:32	Time when the event occurred. UTC/GMT
Updated	2020-05-04 13:57:48	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	340	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	2.412	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.64 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	126	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	us700099sl	Id of event.
Event Code	700099sl	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us700099sl,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

4.7 mb

The magnitude for the event.

Longitude

141.1929° East

Decimal degrees longitude. Negative values for western longitudes.

Latitude

36.3668° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

33.02 km

Depth of the event in kilometers.

Place

53km E 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

2020-05-04 13:34:32

Time when the event occurred. UTC/GMT

Updated

2020-05-04 13:57:48

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

340

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

2.412

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

Root Mean Square

0.64 sec

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

Azimuthal Gap

126

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

us700099sl

Id of event.

Event Code

700099sl

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

Event IDS

,us700099sl,

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

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Light earthquake: M4.7 quake has struck near Oarai in Japan

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