TSUNAMI INFORMATION NO. 1
MINOR SEA-LEVEL DISTURBANCE
Strong currents and rapid changes of seawater level are expected.

PRELIMINARY EARTHQUAKE PARAMETERS

Date and Time : 04 Apr 2023 - 08:54:35 PM
Location : 13.76°N, 125.51°E - Offshore Gigmoto (Catanduanes)
Depth (km) : 09
Magnitude : 6.6

EVALUATION

Based on the tsunami wave models and early tide gauge records of the tsunami, it is expected to experience wave heights of less than one meter above the normal tides and may be higher on enclosed bays and straits.

It is forecasted that the first tsunami waves will arrive between 09:02 PM to 12:54 AM 05 Apr 2023 (PST). These waves may continue for hours.

RECOMMENDED ACTION

The concerned public is advised to be on alert for unusual waves. People are advised to STAY AWAY FROM THE BEACH AND NOT TO GO TO THE COAST of the following provinces until the cancellation of this advisory:


Catanduanes Northern Samar Eastern Samar

People whose houses are located very near the shoreline of these provinces are advised to MOVE FARTHER INLAND.

Owners of boats in harbors, estuaries or shallow coastal water of the above-mentioned provinces should secure their boats and move away from the waterfront. Boats already at sea during this period should stay offshore in deep waters until further advised.

Issued on: 04 Apr 2023 - 09:21:16 PM
Issued by: DNC/RGA/CEBE
IMPORTANT This will be the only tsunami information issued unless additional information becomes available. Always refer to the latest tsunami information posted at the PHIVOLCS official website (https://www.phivolcs.dost.gov.ph/).