Light earthquake: M4.9 quake has struck near Ishinomaki in Japan

A light earthquake with magnitude 4.9 (ml/mb) was reported 54 kilometers (34 miles) from Ishinomaki in Japan on Sunday. Unique identifier: us1000e3p8. Ids that are associated to the event: us1000e3p8. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 141.9194 East, latitude 38.4602 North, depth = 48.75 km. The temblor was detected at 01:49:37 / 1:49 am (local time epicenter). The epicenter of the earthquake was roughly 48.75 km (30 miles) below the earth’s surface. Global time and date of event 12/05/18 / 2018-05-12 16:49:37 / May 12, 2018 @ 4:49 pm UTC/GMT.

Nearest cities/city/towns to hypocenter/epicentrum was Mizusawa, Tōno, Iwanuma (min 5000 pop). Close country/countries that might be effected, Japan (c. 127 288 000 pop). Epicenter of the earthquake was 95 km (59 miles) from Sendai (c. 1 063 100 pop), 94 km (58 miles) from Sendai-shi (c. 1 063 100 pop), 54 km (34 miles) from Ishinomaki (c. 117 200 pop), 85 km (53 miles) from Furukawa (c. 76 300 pop), 85 km (53 miles) from Ichinoseki (c. 63 000 pop), 101 km (63 miles) from Mizusawa (c. 61 300 pop), 79 km (49 miles) from Shiogama (c. 59 500 pop).

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days four and in the last 365 days fifty-five earthquakes of magnitude 3.0 or greater that have been detected in the same area. 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.

Questions or comments?

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. 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: 54 km E of Ishinomaki, Japan.

More information

Parameter	Value	Description
Magnitude	4.9 mb	The magnitude for the event.
Longitude	141.9194° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	38.4602° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	48.75 km	Depth of the event in kilometers.
Place	54km E of Ishinomaki, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-05-12 16:49:37	Time when the event occurred. UTC/GMT
Updated	2018-05-12 17:06:34	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	369	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	1.068	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.93 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	141	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	us1000e3p8	Id of event.
Event Code	1000e3p8	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000e3p8,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

4.9 mb

The magnitude for the event.

Longitude

141.9194° East

Decimal degrees longitude. Negative values for western longitudes.

Latitude

38.4602° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

48.75 km

Depth of the event in kilometers.

Place

54km E of Ishinomaki, Japan

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

Time

2018-05-12 16:49:37

Time when the event occurred. UTC/GMT

Updated

2018-05-12 17:06:34

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

369

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

1.068

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

Root Mean Square

0.93 sec

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

Azimuthal Gap

141

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

us1000e3p8

Id of event.

Event Code

1000e3p8

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

Event IDS

,us1000e3p8,

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

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Light earthquake: M4.9 quake has struck near Ishinomaki in Japan

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