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Light earthquake: M4.4 quake has struck near Chitose in Japan

Earthquake location 42.7368S, 141.7218WA light earthquake magnitude 4.4 (ml/mb) has struck on Saturday, 10 kilometers (6 miles) from Chitose in Japan. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us70003gmq. Unique identifier: us70003gmq. Exact location of event, depth 132.66 km, 141.7218° East, 42.7368° North. Global time and date of event 04/05/19 / 2019-05-04 12:34:55 / May 4, 2019 @ 12:34 pm UTC/GMT. The temblor was detected at 21:34:55 / 9:34 pm (local time epicenter). The epicenter was at a depth of 132.66 km (82 miles).

Closest city/cities/towns to epicentrum/hypocenter was Akabira, Ashibetsu, Yoichi (min 5000 pop). Earthquake epicenter was 48 km (30 miles) from Sapporo (c. 1 883 000 pop), 15 km (9 miles) from Tomakomai (c. 174 800 pop), 77 km (48 miles) from Otaru (c. 143 800 pop), 44 km (27 miles) from Ebetsu (c. 134 000 pop), 76 km (47 miles) from Muroran (c. 96 200 pop), 11 km (7 miles) from Chitose (c. 92 900 pop). Close country/countries that might be effected, Japan (c. 127 288 000 pop).

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

Did you feel it?

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 10 km SSE of Chitose, Japan.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 141.7218° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.7368° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 132.66 km Depth of the event in kilometers.
Place 10km SSE of Chitose, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-05-04 12:34:55 Time when the event occurred. UTC/GMT
Updated 2019-05-04 12:53:41 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 298 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 1.285 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 74 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 us70003gmq Id of event.
Event Code 70003gmq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70003gmq, A comma-separated list of event ids that are associated to an event.

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