Before 11:00 am on the 8th, an earthquake early warning "forecast" was announced for businesses, etc., saying that shaking with a maximum seismic intensity of about 5 lower or more was estimated in Iwate Prefecture, but multiple seismographs The Meteorological Agency immediately canceled it because it was not detected.


No "warning" has been announced for the Earthquake Early Warning for the general public, and according to the Japan Meteorological Agency, there are no reports of troubles caused by this so far.

According to the Japan Meteorological Agency, at 10:51 am, a seismograph in Shizukuishi Town, Iwate Prefecture, detected an earthquake wave estimated to have a seismic intensity of 5 lower or higher at the maximum, and is an Earthquake Early Warning mainly used by businesses. "Forecast" has been announced.



However, since similar seismic waves were not detected by the surrounding seismographs, we announced a cancellation notice 10 seconds after issuing the "forecast".



For this reason, no "warning" for the Earthquake Early Warning for the general public was announced.



According to the Japan Meteorological Agency, as of noon, no trouble reports have been received from businesses using this information.



Since the "forecast" of the Earthquake Early Warning gives priority to speed and is announced even with the data of one seismograph, if similar data cannot be obtained from the surrounding seismographs, it will take a few seconds to a few seconds after the announcement. It is supposed to be canceled at.



Regarding the cause, the Japan Meteorological Agency is investigating that "noise" different from the surrounding earthquakes may have been mixed.