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Light earthquake, 4.6 mag was detected near Iwaki in Japan

Posted by admin on September 12, 2015 0 Comments

Earthquake location 36.8244S, 141.2712WA light earthquake magnitude 4.6 (ml/mb) has occurred on Saturday, 42 kilometers (26 miles) from Iwaki in Japan. The epicenter of the earthquake was roughly 25.71 km (16 miles) below the earth’s surface. Exact location, longitude 141.2712° East, latitude 36.8244° North, depth = 25.71 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 11:44:52 / 11:44 am (local time epicenter). Date and time of earthquake in UTC/GMT: 12/09/15 / 2015-09-12 02:44:52 / September 12, 2015 @ 2:44 am. Unique identifier: us20003izb. Ids that are associated to the event: us20003izb.

Close country/countries that might be effected, Japan (c. 127 288 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Okunoya, Miharu, Sukagawa. Event epicenter was 43 km (26 miles) from Iwaki (c. 357 300 pop), 91 km (57 miles) from Mito-shi (c. 246 500 pop), 61 km (38 miles) from Hitachi (c. 186 300 pop), 81 km (50 miles) from Hitachi-Naka (c. 156 800 pop), 82 km (51 miles) from Katsuta (c. 156 000 pop), 94 km (58 miles) from Sukagawa (c. 68 800 pop), 47 km (29 miles) from Kitaibaraki (c. 50 800 pop).

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

Did you feel the quake?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 42 km SE of Iwaki, Japan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 141.2712° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 36.8244° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25.71 km Depth of the event in kilometers.
Place 42km SE of Iwaki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-12 02:44:52 Time when the event occurred. UTC/GMT
Updated 2015-09-12 03:04:09 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 1.052 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.22 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 122 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 us20003izb Id of event.
Event Code 20003izb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003izb, A comma-separated list of event ids that are associated to an event.

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