537
WWMY80 PGUM 300257
SPSGUM

Special Weather Statement
National Weather Service Tiyan GU
1257 PM ChST Wed Jul 30 2025

GUZ001-MPZ001>003-300430-
Guam-Tinian-Saipan-Rota-
1257 PM ChST Wed Jul 30 2025

...TSUNAMI WAVES PROBABLE AFTER 230 PM....

At 925 ChST a magnitude 8.7 earhquake occurred at 52.2 North
latitude, 160.0 longitude, at a depth of 46 miles, rougly 320 miles
east of the tip of the Kamchatka Peninsula in Russia.

TSUNAMI WAVES HAVE ALREADY BEEN DETECTED by the DART buoys in the
northern Pacific!

HAZARD...Tsunami waves of 0.3 meters to 1 meter in height, or up to
         3.3 feet in height.

POTENTIAL IMPACTS

* Atsunami is a series of waves. The time between wave crests can
  vary from 5 minutes to an hour. The hazard may persist for many
  hours or longer after the initial wave.

* Impacts can vary significantly from one section of the coast to
  the next due to local bathymetry and the shape and elevation of
  the shoreline.

* Impacts can also vary depending upton the state of the tide at the
  time of maximum tsunami waves.

* Persons caught in the water of a tsunami may drown, be crushed by
  debris in the water, or be swept out to sea. Stay out of the water!

* Minor flooding could occur on beaches and in harbor areas.

* Strong and unusual ocean currents will be possible in harbors,
  bays, and other near-shore waters.

PRECAUTIONARY/PREPAREDNESS ACTIONS

Continue to listen for updates regarding changes to the advisory
status from the National Weather Service Guam and local Emergency
Management Offices. Updated texts and threat messages can be found
at tsunami.gov

&&

LAT...LON 1344 14462 1348 14477 1496 14562 1507 14561
      1510 14564 1503 14565 1521 14572 1529 14582
      1418 14519 1419 14529 1418 14529 1416 14528
      1410 14516 1365 14488 1359 14496 1353 14493
      1342 14478 1329 14477 1324 14464
TIME...MOT...LOC 0257Z 340DEG 1114KT 2245 15930 2365 15720

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH

$$

PD/BA