Deutsches Ozeanographisches
Datenzentrum Inventur der Sonne1-Reise SO212 (DOD-Ref-No.20110424)
Inventory of Sonne1 Cruise SO212 (DOD-Ref-No.20110424)

Plattform
Platform
Reise-Nr.
Cruise-No.
Zeitraum
Period
Projekt
Project
Arbeitsgebiet
Working area
Sonne1 SO212 22.12.2010 - 26.12.2010 SFB 754
 
South Pacific Ocean  

Fahrtleiter
Chief Scientist
Institut
Institute
Auslaufhafen
Port of departure
Einlaufhafen
Port of return
Stationskarte
Station map
Schiffsroute
Trackchart
Fluh Ernst R. Leibniz-Institut fur Meereswissenschaften an der Universitat Kiel Talcahuano Valparaiso   

Ziel der Reise / Objectives of Cruise:

On February 27, 2010 the second largest earthquake of the 21th century happened in Central Chile. With a magnitude of Mw=8.8 it is among the 5 strongest earthquakes that were instrumentally recorded, and it occurred 50 years after the great 1960 Chile earthquake. It ruptured an area of approx. 800 km length and affected the Chilean provinces Bio-Bio and Maule and thus ruptured the segment to the north of the 1960 rupture zone. In this area, the IFM-GEOMAR and SFB574 had operated an amphibious network of seismological stations for 6 month in 2008, just prior to the earthquake. It was therefore of great interest to observe the aftershocks in this area, so that for the first time a detailed image before and after a megathrust earthquake will be available.Therefore, during leg SO209-2, from 18.–21 September 2010 thirty Ocean Bottom Seismometers (OBS) were deployed in the main rupture area between 33? and 36? S.During leg SO212 from 22.–26 December 2010, these instruments were recovered, starting from Talcahuano and ending the cruise in Valparaiso. It was possible to quickly check the data quality, and all but one instrument recorded well. Initial results from onboard data analyses exhibit a good data quality and profound results to be expected.

Messungen / Measurements

Institut
Institute
Wissenschaftler
Scientist
Anzahl
Number
Einheit
Unit
Typ der Messungen
Type of measurements
Kommentar
Comments
Daten im DOD
Data in DOD
IFMGEO Fluh Ernst R. 30 stations G26
Seismic refraction (no.of nautical miles)
recovery OBS Verankerungen no
IFMGEO Fluh Ernst R. 1 n miles G73
Single-beam echosounding
Simrad EM120 no
IFMGEO Fluh Ernst R. 1 n miles H80
Other physical measurements
Underway measurements during the whole trip such as coordinates, depth, meteorological parameter and so on yes
16.11.2019