Abstract:
The Historical Tsunami Database for the Pacific (HTDB/PAC) was
established and is being maintained by the Novosibirsk Tsunami
Laboratory (NTL) of the Institute of Computational Mathematics and
Mathematical Geophysics ICM&MG, Siberian Division of Russian Academy
of Sciences since 1991. The initial data collection from the existing
tsunami catalogs and primary
... publications was made under the ETDB
(Expert Tsunami Database) Project supported by the Russian Foundation
of Basic Research (grants 93-05-14499 and 95-07-19335) and the
Intergovernmental Oceanographic Commission of UNESCO (contracts SC/RP
207.518.4 and SC/RP 207.566.6). The database can be accessed online
at:
http://tsun.sscc.ru/htdbpac/
The database consists of the two main sets of observational data
parametric source data ( event data ) and observed or measured run-up
heights ( run-up data ). The first set contains the source and some
integrated tsunami parameters for almost 1490 historical tsunamigenic
events occurred in the Pacific (within the area between 65S to 65N and
80E to 50W) from 47 B.C up to the present time. A set of parameters
includes the full date (Year, Mo, Da) and time ( Hr, Mn, Sec) of an
event, position of its source ( Lat, Long), the source depth Depth, the
basic set of source magnitudes (mb, Ms, Mw, Mt ), tsunami intensity I
(on the Soloviev-Imamura scale), tsunami magnitude m (on the
Imamira-Iida scale), the maximum observed run-up value Hmax, the total
number of available run-up and tide-gauge measurements N, damage code
D, the number of reported fatalities due to an event F, a cause of the
tsunami C , validity of an event V, warning status WS (where
available), tsunamigenic region code TR, the basic reference BR and a
brief description of the source region.
The second set contains nearly 8000 coastal run-up observations and
tide-gauge measurements of wave heights. This part of the database was
initially imported from the NGDC Worldwide Tsunami Database
(Lockridge, Dunbar, 1996) and in its considerable part it is still
fully identical to the NGDC run-up data file. Major improvements and
corrections were made for the Kuril-Kamchatka region (within the
ETDB/PAC Project) and for the US Pacific coast including Alaska and
Hawaii (within the HTDB/US Project). Also, we have added all the
accessible for us measurements of wave heights for the recent Pacific
tsunamis of 1992-1998 obtained in the post-event field surveys. For
each wave height record, a set of displayed parameters includes the
3-level name of the site (Region name, Area name and Site name), its
geographical coordinates (Lat, Long), the type of measurement T ( R -
run-up, T - tide-gauge) and the observed run-up height or the double
amplitude H (in meters). 
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