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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.9 mag, 5 km ENE of Omagari, Japan


Earthquake location 39.4717S, 140.545WA light earthquake magnitude 4.9 (ml/mb) has occurred on Friday, 5 kilometers (3 miles) from Omagari in Japan. The epicenter of the earthquake was roughly 6.5 km (4 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 08/09/17 / 2017-09-08 13:23:19 / September 8, 2017 @ 1:23 pm. Exact location of earthquake, 140.545° East, 39.4717° North, depth 6.5 km. The 4.9-magnitude earthquake was detected at 22:23:19 / 10:23 pm (local time epicenter). Event id: us2000ai2d. Ids that are associated to the earthquake: us2000ai2d.

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 Obanazawa, Noshiromachi, Ōdate. Epicenter of the earthquake was 47 km (29 miles) from Akita Shi (c. 325 800 pop), 46 km (28 miles) from Akita (c. 320 100 pop), 58 km (36 miles) from Morioka-shi (c. 295 200 pop), 86 km (53 miles) from Sakata (c. 100 400 pop), 53 km (33 miles) from Kitakami (c. 93 900 pop), 50 km (31 miles) from Hanamaki (c. 73 100 pop), 89 km (55 miles) from Ōdate (c. 64 500 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days six earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel anything?

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 5 km ENE of Omagari, Japan. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.9 mb The magnitude for the event.
Longitude 140.545° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 39.4717° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 6.5 km Depth of the event in kilometers.
Place 5km ENE of Omagari, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-09-08 13:23:19 Time when the event occurred. UTC/GMT
Updated 2017-09-10 21:33:16 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 1.375 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 118 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 us2000ai2d Id of event.
Event Code 2000ai2d An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000ai2d, A comma-separated list of event ids that are associated to an event.

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