The GEOFON Network and its Partner Networks (GEVN - GEOFON Extended Virtual Network )

GEOFON and GEVN Partner Stations in the Mediterranean and Africa

The SeisComP Concept of Networked Seismographs and Data Centers: (Seismological Communication Processor)

Equipment used in GEOFON stations STS-2 VBB seismometer Earthdata digitizer + SeisComP box

GEOFON Station on Greenland Ice Sheet

GEOFON Station Malatya (Turkey)

SeisComP Real-Time Trace Viewer (SeisGram2K – Anthony Lomax)

GEOFON/GEVN (Near) Real-Time Network Data Processing Products

GEOFON/GEVN Automatic (Near) Real-Time Bulletin

GEOFON „Live“ Seismograms ( http://www.gfz-potsdam.de/geofon/gfn_liveseis.html

) Sumatra Quake with Aftershocks (26.12.2004) recorded in Malatya (Eastern Turkey)

Proposed Station Distribution for an Earthquake Monitoring Network for the Indian Ocean Region (Locations to be discussed)

Propagation of Seismic P Waves in Minutes

Estimated Propagation of Tsunami after the Sumatra Quake

Sketch of Seismic Tsunami Surveillance System

Comparison of Automatic Information on the Internet after the Sumatra Quake

Origin Time: 00:58:50 UTC Mw=9.0

Germany: GFZ 01:10:57 mb=6.9

+12 min Italy: INGV +16 min mb=6.9 Germany: LED +18 min mb=7.1

Switzerland: SED +19 min mb=6.1 Norway: NEWS +20 min mb=5.5 NOR +22 min mb=6.3 France: RNS +31 min mb=6.4 Slovakia: BRA +32 min mb=6.6 Europe/ORFEUS: ODC +65 min mb=7.3 France: LDG +731 min mb=5.9

International Centres (Manual Analysis)

USA: NEIC +79 min Ms=8.5 Europe/EMSC: EMSC +97 min Mw=8.9

Pacific Tsunami Warning Center

USA: PTWC +15 min Mw=8.0

EMSC, NEIC Automatic Location PTWC

GEOFON Global Seismic Monitor ( http://www.gfz-potsdam.de/geofon/seismon ) Das Sumatra-Beben angezeigt im Internet um 26/12/2004 01:12 UTC – 13 Minuten nach Herdzeit

GEOFON Email Earthquake Information Message – Issued 12 Minutes after the Quake

Aftershock Activity After the Sumatra Quake (> 300 Events Dec 25 – Feb 10)