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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.6 mag, 35 km ESE of Ishinomaki, Japan


Earthquake location 38.2921S, 141.6775WA light earthquake magnitude 4.6 (ml/mb) has occurred on Thursday, 35 kilometers (22 miles) from Ishinomaki in Japan. Exact time and date of event in UTC/GMT: 11/04/18 / 2018-04-11 18:31:06 / April 11, 2018 @ 6:31 pm. Unique identifier: us2000e24r. Ids that are associated to the event: us2000e24r. The temblor was detected at 03:31:06 / 3:31 am (local time epicenter). The epicenter was at a depth of 52.06 km (32 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 141.6775 East, latitude 38.2921 North, depth = 52.06 km.

Closest city/cities/towns to epicentrum/hypocenter was Marumori, Ōkawara, Kakuda (min 5000 pop). Epicenter of the earthquake was 71 km (44 miles) from Sendai (c. 1 063 100 pop), 70 km (44 miles) from Sendai-shi (c. 1 063 100 pop), 36 km (22 miles) from Ishinomaki (c. 117 200 pop), 70 km (44 miles) from Furukawa (c. 76 300 pop), 84 km (52 miles) from Ichinoseki (c. 63 000 pop), 56 km (35 miles) from Shiogama (c. 59 500 pop), 70 km (43 miles) from Tomiya (c. 42 500 pop). Nearby country/countries, Japan (c. 127 288 000 pop) (That might be effected).

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

How would you describe the shaking?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 35 km ESE of Ishinomaki, Japan.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 141.6775° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.2921° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 52.06 km Depth of the event in kilometers.
Place 35km ESE of Ishinomaki, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-04-11 18:31:06 Time when the event occurred. UTC/GMT
Updated 2018-04-25 19:02:47 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 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 0.818 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.59 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 171 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 us2000e24r Id of event.
Event Code 2000e24r An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000e24r, A comma-separated list of event ids that are associated to an event.

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