Communication equipment has been out of order since the afternoon of the 22nd at the Japan Meteorological Agency's earthquake observation point on an island in the Noto region of Ishikawa prefecture, where active seismic activity continues, such as observing shaking with seismic intensities of 6 lower and 5 higher this week.
The Japan Meteorological Agency warns that if the epicenter is in an area where earthquakes occur one after another, the announcement of Earthquake Early Warnings may be delayed by up to 5 seconds, and is urgently recovering.
According to the Japan Meteorological Agency, at the observation point on "Hegurajima" about 50 km north of the city center of Wajima City, there was a problem that data such as seismographs and seismic intensity meters could not be sent from around 1:25 pm on the 22nd. , It means that it has not been restored even now.
The detailed cause is unknown, but it seems to be a failure of the communication device.
Due to this effect, the observation data of the island cannot be used for the announcement of the Earthquake Early Warning, and the Japan Meteorological Agency has set the epicenter in the Noto region, where active activity continues for up to 10 seconds in the case of an earthquake whose epicenter is around the island. It is explained that there may be a delay of up to 5 seconds in an earthquake.
It is estimated that there will be a delay of about 1.2 seconds for the earthquake on the 19th of this month when the seismic intensity of 6 lower was observed in Suzu City, and about 1.6 seconds for the earthquake on the 20th after the observation of the seismic intensity of 5 higher.
It does not affect the announcement of tsunami warnings.
Since the rough weather is expected around Hegurajima after the 23rd, the restoration will be after next week at the earliest, and the Japan Meteorological Agency said, "We are worried about the ongoing seismic activity in the Noto region. However, I would like to make an immediate recovery effort. "