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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag has occurred near Ofunato in Japan



Earthquake location 38.7824S, 142.5208WA light earthquake magnitude 4.3 (ml/mb) strikes 76 kilometers (47 miles) from Ofunato in Japan on Wednesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter of the earthquake was roughly 35 km (22 miles) below the earth’s surface. Event id: us2000a5xf. Ids that are associated to the earthquake: us2000a5xf. Exact location of event, longitude 142.5208 East, latitude 38.7824 North, depth = 35 km. Global time and date of event 02/08/17 / 2017-08-02 00:19:21 / August 2, 2017 @ 12:19 am UTC/GMT. The 4.3-magnitude earthquake has occurred at 10:19:21 / 10:19 am (local time epicenter).

Close country/countries that might be effected, Japan (c. 127 288 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Yamada, Ōtsuchi, Kamaishi (min 5000 pop). Epicenter of the event was 79 km (49 miles) from Kamaishi (c. 43 100 pop), 77 km (48 miles) from Ōfunato (c. 35 400 pop), 91 km (56 miles) from Yamada (c. 20 100 pop), 84 km (52 miles) from Ōtsuchi (c. 16 500 pop).

Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been two, in the last 10 days four, in the past 30 days eight and in the last 365 days thirty-eight 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.

Questions or comments?

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: 76 km ESE of Ofunato, Japan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 142.5208° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.7824° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 76km ESE 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 2017-08-02 00:19:21 Time when the event occurred. UTC/GMT
Updated 2017-08-10 05:01:37 Time when the event was most recently updated. UTC/GMT
Timezone offset 600 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 284 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 1.638 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.78 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 152 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 us2000a5xf Id of event.
Event Code 2000a5xf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000a5xf, A comma-separated list of event ids that are associated to an event.

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