BULLETIN
Public Tsunami Message Number 4
NWS National Tsunami Warning Center Palmer AK
239 PM AKDT Mon Oct 19 2020
UPDATES
-------
* Updated observations
...THE TSUNAMI WARNING REMAINS IN EFFECT...
Tsunami Warning in Effect for;
* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
Pass, Alaska (80 miles NE of Unalaska)
For other US and Canadian Pacific coasts in North America,
there is no tsunami threat.
FORECASTS OF TSUNAMI ACTIVITY
-----------------------------
* Tsunami activity is forecasted to start at the following
locations at the specified times.
FORECAST
START
SITE OF TSUNAMI
---- ----------
* Alaska
Sand Point 1355 AKDT Oct 19
Cold Bay 1445 AKDT Oct 19
Kodiak 1450 AKDT Oct 19
OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
* Observed max tsunami height is the highest recorded water level
above the tide level up to the time of this message.
TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- ---------------- --------------
Sand Point Alaska 1525 PDT Oct 19 2.0ft
PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
* Magnitude 7.5
* Origin Time 1255 AKDT Oct 19 2020
1355 PDT Oct 19 2020
2055 UTC Oct 19 2020
* Coordinates 54.7 North 159.6 West
* Depth 25 miles
* Location 55 miles SE of Sand Point, Alaska
575 miles SW of Anchorage, Alaska
RECOMMENDED ACTIONS
-------------------
Actions to protect human life and property will
vary within tsunami warning areas.
If you are in a tsunami warning area;
* Evacuate inland or to higher ground above and beyond
designated tsunami hazard zones or move to an upper floor
of a multi-story building depending on your situation.
* Move out of the water, off the beach, and away from
harbors, marinas, breakwaters, bays and inlets.
* Be alert to and follow instructions from your local
emergency officials because they may have more detailed or
specific information for your location.
* If you feel a strong earthquake or extended ground rolling
take immediate protective actions such as moving inland
and/or uphill preferably by foot.
* Boat operators,
* Where time and conditions permit, move your boat out to
sea to a depth of at least 180 feet.
* If at sea avoid entering shallow water, harbors,
marinas, bays, and inlets to avoid floating and
submerged debris and strong currents.
* Do not go to the shore to observe the tsunami.
* Do not return to the coast until local emergency officials
indicate it is safe to do so.