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Earthquake breaking news, Moderate World Earthquakes Magnitude 5–5.9

Moderate earthquake 5.5 mag, 129 km E of Miyako, Japan


Earthquake location 39.6859S, 143.4524WA moderate earthquake magnitude 5.5 (ml/mb) has struck on Friday, 129 km E of Miyako, Japan (80 miles). Unique identifier: us6000rpja. Ids that are associated to the event: us6000rpja. Exact time and date of event in UTC/GMT: 21/11/25 / 2025-11-21 12:22:04 / November 21, 2025 @ 12:22 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 5.5-magnitude earthquake was detected at 12:22:04 / 12:22 pm (local time epicenter). The earthquake was roughly at a depth of 10 km (6 miles). Exact location of event, longitude 143.4524 East, latitude 39.6859 North, depth = 10 km.

Every year there are an estimated 1320 moderate earthquakes in the world. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been one, in the last 10 days twelve, in the past 30 days sixty-five and in the last 365 days seventy-nine earthquakes of magnitude 3.0 or greater that have been detected nearby.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 129 km E of Miyako, Japan.

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More information

Parameter Value Description
Magnitude 5.5 mb The magnitude for the event.
Longitude 143.4524° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 39.6859° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 129 km E of Miyako, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-11-21 12:22:04 Time when the event occurred. UTC/GMT
Updated 2025-11-21 12:41:17 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 465 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 101 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.134 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.74 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 97 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mww The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us6000rpja Id of event.
Event Code 6000rpja An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rpja, A comma-separated list of event ids that are associated to an event.

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