Tide Gauge Observations of the Indian Ocean Tsunami, December 26, 2004, at the Rio De La Plata Estuary, Argentina

The Tsunami Threat - Research and Technology ◽

10.5772/14652 ◽

2011 ◽

Cited By ~ 2

Author(s):

Walter Dragani ◽

Enrique DOnofrio ◽

Dernis Mediavilla ◽

Walter Grismeyer ◽

Mnica Fiore

Keyword(s):

Indian Ocean ◽

Tide Gauge ◽

Indian Ocean Tsunami ◽

Rio De La Plata ◽

Río De La Plata ◽

La Plata ◽

The Indian Ocean

Field surveys and numerical modelling of the 2004 December 26 Indian Ocean tsunami in the area of Mumbai, west coast of India

Geophysical Journal International ◽

10.1093/gji/ggaa277 ◽

2020 ◽

Vol 222 (3) ◽

pp. 1952-1964 ◽

Cited By ~ 3

Author(s):

Mohammad Heidarzadeh ◽

Alexander Rabinovich ◽

Satoshi Kusumoto ◽

C P Rajendran

Keyword(s):

Indian Ocean ◽

Subduction Zone ◽

West Coast ◽

Subduction Zones ◽

Field Survey ◽

Tide Gauge ◽

Indian Ocean Tsunami ◽

Tide Gauge Records ◽

Makran Subduction Zone ◽

The Indian Ocean

ABSTRACT In the aftermath of the 2004 Indian Ocean (Sumatra-Andaman) tsunami, numerous survey teams investigated its effects on various locations across the Indian Ocean. However, these efforts were focused only on sites that experienced major destruction and a high death toll. As a consequence, some Indian Ocean coastal megacities were not examined. Among the cities not surveyed was Mumbai, the principal west coast port and economical capital of India with a population of more than 12 million. Mumbai is at risk of tsunamis from two major subduction zones in the Indian Ocean: the Sumatra–Andaman subduction zone (SASZ) and the Makran subduction zone (MSZ). As a part of the present study, we conducted a field survey of the 2004 Indian Ocean tsunami effects in Mumbai, analysed the available tide gauge records and performed tsunami simulations. Our field survey in 2018 January found run-up heights of 1.6−3.3 m in the Mumbai area. According to our analysis of tide gauge data, tsunami trough-to-crest heights in Okha (550 km to the north of Mumbai) and in Mormugao (410 km to the south of Mumbai) were 46 cm and 108 cm, respectively. Simulations of a hypothetical MSZ Mw 9.0 earthquake and tsunami, together with the Mw 9.1 Sumatra–Andaman earthquake and tsunami, show that the tsunami heights generated in Mumbai by an MSZ tsunami would be significantly larger than those generated by the 2004 Sumatra–Andaman tsunami. This result indicates that future tsunami hazard mitigation for Mumbai needs to be based on a potential large MSZ earthquake rather than an SASZ earthquake.

Tide gauge observations of the Indian ocean tsunami, December 26, 2004, in Buenos Aires coastal waters, Argentina

Continental Shelf Research ◽

10.1016/j.csr.2006.03.002 ◽

2006 ◽

Vol 26 (14) ◽

pp. 1543-1550 ◽

Cited By ~ 13

Author(s):

Walter C. Dragani ◽

Enrique E. D’Onofrio ◽

Walter Grismeyer ◽

Monica E. Fiore

Keyword(s):

Indian Ocean ◽

Coastal Waters ◽

Buenos Aires ◽

Tide Gauge ◽

Indian Ocean Tsunami ◽

The Indian Ocean

REVIEW OF TIDE GAUGE RECORDS IN THE INDIAN OCEAN

Journal of Earthquake and Tsunami ◽

10.1142/s1793431109000378 ◽

2009 ◽

Vol 03 (01) ◽

pp. 1-15

Author(s):

HIROYUKI MATSUMOTO ◽

YUICHIRO TANIOKA ◽

YUICHI NISHIMURA ◽

YOSHINOBU TSUJI ◽

YUICHI NAMEGAYA ◽

...

Keyword(s):

Indian Ocean ◽

Tide Gauge ◽

Indian Ocean Tsunami ◽

Tide Gauges ◽

Tide Gauge Records ◽

Historical Tsunami ◽

Tide Level ◽

History Of ◽

The Indian Ocean ◽

Systematic Collection

According to the NOAA earthquake database, at least 31 events have been found in the Indian Ocean in terms of tsunami event since 1900, most of which occurred along the Sunda Trench. In this study, we review the history of tide level measurements and their datasets archives in Thailand, Indonesia, India, and Australia. We collected tide gauge paper charts recording historical tsunamis including the 2004 Indian Ocean tsunami in those countries. As a result, systematic collection of historical tsunami records by tide gauges in the Indian Ocean has been difficult, because few tsunamigenic earthquakes occurred in the Indian Ocean during the instrumentally observed period.