An earthquake with a preliminary magnitude of 5.0 occurred in the izu islands japan region in vicinity…

Original warning text

PHILIPPINE SEA.
JAPAN.
DNC 12.
AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE
OF 5.0 OCCURRED IN THE IZU ISLANDS JAPAN REGION IN
VICINITY 29-42.00N 139-54.00E AT 082026Z OCT.
BASED ON ALL AVAILABLE DATA A TSUNAMI WAS GENERATED AT
APPROXIMATELY THE TIME AND LOCATION OF THIS EARTHQUAKE.
TSUNAMI THREAT LIMITED TO IZU ISLANDS AND JAPAN.
JMA REPORTED MAXIMUM WAVEHEIGHT OF 60CM AT
HACHIJOJIMA. WAVE HEIGHTS OF LESS THAN ONE THIRD OF A
METER OVER TIDE LEVEL WERE SEEN INTOSASHIMIZU SHIKOKU,
CHICHIJIMA JAPAN, MERA JAPAN AND KUSHIMOTO JAPAN.