Moderate earthquake: M5.5 quake has struck near Namie in Japan

A moderate earthquake magnitude 5.5 (ml/mb) has struck on Monday, 66 kilometers (41 miles) from Namie in Japan. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 5.5-magnitude earthquake was detected at 01:28:40 / 1:28 am (local time epicenter). Exact location, longitude 141.7387° East, latitude 37.6047° North, depth = 41.25 km. Exact time and date of event in UTC/GMT: 25/02/18 / 2018-02-25 16:28:40 / February 25, 2018 @ 4:28 pm. The earthquake occurred at a depth of 41.25 km (26 miles). Event id: us2000d7pu. Ids that are associated to the earthquake: us2000d7pu.

Nearest cities/city/villages to epicentrum/hypocenter was Miharu, Shiroishi, Hobaramachi (min 5000 pop). Close country/countries, Japan (c. 127 288 000 pop) (That might be effected). Epicenter of the earthquake was 105 km (66 miles) from Sendai (c. 1 063 100 pop), 106 km (66 miles) from Sendai-shi (c. 1 063 100 pop), 98 km (61 miles) from Iwaki (c. 357 300 pop), 98 km (61 miles) from Ishinomaki (c. 117 200 pop), 100 km (62 miles) from Shiogama (c. 59 500 pop), 95 km (59 miles) from Iwanuma (c. 42 400 pop), 108 km (67 miles) from Shiroishi (c. 39 500 pop), 91 km (57 miles) from Watari (c. 36 300 pop).

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. Each year there are an estimated 1320 moderate earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days six and in the last 365 days seventy-five earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 66 km ENE of Namie, Japan. This information comes from the USGS Earthquake Notification Service.

More information

Parameter	Value	Description
Magnitude	5.5 mb	The magnitude for the event.
Longitude	141.7387° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	37.6047° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	41.25 km	Depth of the event in kilometers.
Place	66km ENE of Namie, Japan	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-02-25 16:28:40	Time when the event occurred. UTC/GMT
Updated	2018-02-25 16:54:11	Time when the event was most recently updated. UTC/GMT
Timezone offset	540	Timezone offset from UTC in minutes at the event epicenter.
Felt	26	The total number of felt reports
CDI	3.4	The maximum reported intensity for the event.
MMI	3.82	The maximum estimated instrumental intensity for the event.
Alert Level	green	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	474	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	0.797	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.53 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	100	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	us2000d7pu	Id of event.
Event Code	2000d7pu	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us2000d7pu,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

5.5 mb

The magnitude for the event.

Longitude

141.7387° East

Decimal degrees longitude. Negative values for western longitudes.

Latitude

37.6047° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

41.25 km

Depth of the event in kilometers.

Place

66km ENE of Namie, Japan

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

Time

2018-02-25 16:28:40

Time when the event occurred. UTC/GMT

Updated

2018-02-25 16:54:11

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

3.4

The maximum reported intensity for the event.

MMI

3.82

The maximum estimated instrumental intensity for the event.

Alert Level

green

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

474

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

0.797

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

Root Mean Square

0.53 sec

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

Azimuthal Gap

100

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

us2000d7pu

Id of event.

Event Code

2000d7pu

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

Event IDS

,us2000d7pu,

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

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Moderate earthquake: M5.5 quake has struck near Namie in Japan

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