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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Ofunato in Japan

Earthquake location 39.107S, 141.5534WA light earthquake magnitude 4.2 (ml/mb) has occurred on Saturday, 14 kilometers (9 miles) from Ofunato in Japan. The temblor was detected at 08:38:10 / 8:38 am (local time epicenter). Exact location, longitude 141.5534° East, latitude 39.107° North, depth = 75.3 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us20003n07. Event ids that are associated: us20003n07. Exact time and date of event in UTC/GMT: 11/09/15 / 2015-09-11 23:38:10 / September 11, 2015 @ 11:38 pm. The earthquake occurred at a depth of 75.3 km (47 miles) below the earth’s surface.

Country/countries that might be effected, Japan (c. 127 288 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Matsushima, Yuzawa, Yokotemachi. Epicenter of the earthquake was 75 km (46 miles) from Morioka-shi (c. 295 200 pop), 80 km (50 miles) from Ishinomaki (c. 117 200 pop), 42 km (26 miles) from Kitakami (c. 93 900 pop), 79 km (49 miles) from Furukawa (c. 76 300 pop), 49 km (30 miles) from Hanamaki (c. 73 100 pop), 42 km (26 miles) from Ichinoseki (c. 63 000 pop).

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

Questions or comments?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 14 km WNW of Ofunato, Japan.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 141.5534° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 39.107° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 75.3 km Depth of the event in kilometers.
Place 14km WNW of Ofunato, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-11 23:38:10 Time when the event occurred. UTC/GMT
Updated 2015-10-05 02:09:26 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 271 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 1.373 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.06 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 106 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 us20003n07 Id of event.
Event Code 20003n07 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003n07, A comma-separated list of event ids that are associated to an event.

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