Tsunami Laboratory
Tsunami General Info
Online catalogs
Regional tsunamis
Institute of Computational Mathematics and Mathematical Geophysics.

pr. Lavrentieva, 6,
Fax:(383)330-87-83 Email:gvk@sscc.ru



  • Integrated Tsunami Research and Information System.
    ITRIS Pilot (Integrated Tsunami Research and Information System, Pilot version) is an interactive software package developed by the Novosibirsk Tsunami Laboratory under the joint project with WAPMERR (Geneva, Switzerland) for maintaining and display of tsunami-related data, carrying out numerical modeling of tsunami generation, propagation and run-up and for development of tsunami hazard and inundation maps particular parts of the World Ocean coast. Windows-based database management system intended for visualization and handling of historical data for tsunamis affecting the Pacific coast.

    All these components are embedded into a specially developed graphic shell, built as a GIS-type mapping system that provides the enhanced environment for easy and efficient manipulation with maps, models and data. The graphic shell is written on C# and runs under Windows 2000, XP, Vista on IBM PCs and compatibles.

  • International Tsunami Expedition in Southern Madagascar, August 29-September 13, 2006.
    The International Tsunami Expedition has finished a two week survey of the southern coast of Madagascar. The research team, consisted of Dr. D.Abbott, Lamont Doherty Earth Observatory of Columbia University, USA, Dr. E.Bryant, University of Wollongong, Australia, Dr. V.Gusiakov, Novosibirsk Tsunami Laboratory, Russia, Dr. W.Masse, Los Alamos National Lab, USA. The team was accompanied by two representatives of the University of Antananarivo, Andriamiranta Raveloson and Hoby Raza. The team obtained field data from large chevrons detected earlier this year using Google Earth imagery. The main purpose of this field trip was to measure the vertical and horizontal extension of the chevrons, to study their genesis and morphological features, and to obtain marine shell in order to determine their age. Another important goal of the expedition was to verify whether or not the chevrons discovered on satellite images represent mega-tsunami deposits and if so, to confirm the inferred run-ups derived from the imagery.

    The expedition, using two rented 4-weel drive vehicles, studied over 150 km of the southernmost Madagascar coast. Participants made several traverses of the four largest chevron formations in this area - near Faux Cape, Cape Saint Marie and along the coast of Fenambosy and Ampalaza Bays. All the chevrons consist of marine sand transported by water, in some cases over the edge of a coastal escarpment over 150 m high. In contrast to wind-blown dunes, which consist of a well sorted, unimodal size distribution, the chevrons are unsorted with a broad range of particle sizes, from small boulders down to clay particles. They also include marine shells. Dump deposits, consisting of a mixture of rock fragments and marine shell, that are typical of mega-tsunami processes were found eastward from Lavanono to Cape Saint Marie. Many of the rock fragments were not locally derived. The team documented maximum runups of 86 m above present day sea level at Ampalaza, 186 m at Fenambosy, 205 m at Faux Cap and 192 m at Cape St Marie. Each of the chevrons represents lateral transport of sediment onto the coast over many kilometers: 20 km at Faux Cap, 30 km at Fenambosy, and 45 km at Ampalaza.

    The measured run-up heights and in land penetration over this extended part of the coast are far beyond the range produced by the largest historically known tectonic tsunamis (seismic and volcanic). Such a great run-up can be produced only by a large-volume submarine landslide somewhere along the nearby continental slope or by an oceanic impact within the Indian Ocean. In the later case, the 29 km Burckle crater found by D.Abbott in 2005 (Abbott et al,2005) at 30S, 61E on a fracture zone of the Southwest Indian Ridge is a good candidate for the source of the mega-tsunami responsible for formation of these chevrons. The Burckle crater is geologically very young, most probably about 4500 to 5000 years old. If C-14 dating of shell collected from the chevrons matches the probable age of the Burckle crater, this will be an important result to prove the reality of the threat of cosmogenic tsunamis in the recent past in the world's oceans.

    The expedition was sponsored by the WAPMERR (World Agency for Planetary Monitoring and Earthquake Risk Reduction), Geneva, Switzerland as a part of their cooperative project with the Novosibirsk Tsunami Laboratory for the development of the World-Wide Tsunami Database and methods for long-term tsunami risk estimation.

  • Analysis of the Tsunami Travel Time maps for damaging tsunamis in the World Ocean
    The report prepared by the WAPMERR Tsunami Research Group for the IOC/UNESCO describes the results of analysis of the Tsunami Travel Time (TTT) maps for regional and trans-oceanic damageable tsunamigenic events occurred in the main tsunamigenic regions of the World Ocean. It is based on the latest version of the Global Historical Tsunami DataBase (GTDB) that covers the period from 1628 B.C. till present and contains nearly 2250 historical events with 1206 of them occurred in the Pacific, 263 in the Atlantic, 125 in the Indian ocean and 545 in the Mediterranean region. Out these 2250 historical events, only 223 (10%) tsunamis resulted in any fatalities, all others were weak local events observable only in some particular areas of the nearest coast. In total, they are responsible for 694,000 lives lost in tsunami waves during all the historical period of available observations. From these 223 deadly tsunamis, 212 (95%) fall into the category of local and regional events with most of damage and all fatalities limited to one-hour propagation time. These regional events are responsible for 322,000 (47% of the total ) fatalities. The 11 trans-oceanic tsunamis that occurred in the World Ocean during the last 250 years resulted in 372,000 (53% of the total) fatalities. The detailed analysis of spatial distribution of fatalities for these most destructive tsunamis shows that although their damaging impact can last up to 23-24 hours, over 84% of all their fatalities occur within the first hour of propagation time. Another 12% of fatalities happen within the second hour, and the rest of 4% occur during the remaining time (greater than two hours). The overwhelming majority of other tsunamis (that is 99.5% of all historical cases and 95% of all damaging events) are the local and regional events whose major damage and all fatalities are limited to a near-source area within one-hour of propagation time. Among them, more than a half (60%) had their sources within 30-min travel time limit. The above conclusions, obtained by the analysis of the most complete historical dataset, currently available in digital domain, are important and should be taken into account in design and implementation of any regional or basin-wide tsunami warning system.

  • Integrated Tsunami Database for the World Ocean (WinITDB Project)

  • A comprehensive Integrated Tsunami DataBase (ITDB) for the World Ocean has been compiled as part of the joint IUGG/TC and ICG/ITSU Project "Basic Pacific Tsunami Catalog and Database". The project, launched in 1997, is directed to improve the situation with catalogization of historical tsunamis in the Pacific by means of organizing them in the form of the parametric tsunami catalog and the database. Its final goal is the development of the comprehensive historical tsunami catalog covering the whole historical period and containing all the meaningful tsunami data along with additional reference information related to the tsunami problem in the Pacific. The database consists of three main parts: the catalog of tsunamigenic events with their basic source parameters, the catalog of the observed run-up heights and a Pacific-wide catalog of historical earthquakes from pre-historic times till present.

  • Parametric Data Manager

  • The PDM (Parametric Data Manager) is a DBMS-type software written on Visual C ++ and run under Windows 98, 2000, NT 4.0 and XP. The PDM is the supplementary part of the WinITDB (Windows-based Integrated Tsunami DataBase) package developed at the Novosibirsk Tsunami Laboratory for storage, visulalization and processing of tsunami-related data. The PDM was specially designed for database regional coordinators and data compilers to assist them in the initial data compilation, storage, editing and updating and their further converting into the WinITDB format. The PDM can handle all the basic types of tsunami data and information as parametric (source data, run-up observations, tide measurements) as descriptive (structured text, bibliographical references, digitized images). The PDM consists of the Quick Look Table (QLT) that displays the list of tsunamigenic events with the condensed set of their source parameters and the Tsunami Event Card (TEC) that presents the full set of parametric and reference data related to a particular event. In the QLT, every event is shown as a single line of parameters representing the basic set of data on a particular tsunamigenic event. Except the listing and sorting of tsunamigenic events, the QLT allows to make any event retrieval by multiple criteria, sorting and report printing. The TEC provides an access to the full set of data related to a particular event. It consists of several tags containing a particular type of information (source event data, data on damage, run-up heights, textual description of an event, photos, sketches and other graphical images, bibliographical references). The important feature of the TEC is the ability to manipulate with the adequately referenced multi-string data related to a single event (source coordinates, magnitudes, estimates of damage) as provided by different agencies.