Dr Mohammad Heidarzadeh (PhD, CEng, MICE, C.WEM, MCIWEM) Senior Lecturer of Civil Engineering at the University of Bath (mhk58@bath.ac.uk) A new study shows that the 2019 Toddbrook dam incident (Figure 1), where the dam was on the brink of collapse, was the outcome of (1) poor maintenance, (2) inadequate design, and (3) torrential rainfall leading […]
By: Dr Mohammad Heidarzadeh Associate Professor of Civil Engineering at the University of Bath (England) Secretary General of the International Tsunami Commission. Email: mhk58@bath.ac.uk A new study shows that the deadly and global-reaching tsunami generated by the Hunga Tonga–Hunga Haʻapai volcano in January 2022 was as high as 90 m (see Figure 1). The tsunami […]
For first time, we developed empirical Green’s functions for tsunamis. The details are shown in the figure. There were two tsunamis in the Solomon Islands region in July 2015 (Mw7.0) and in February 2013 (Mw8.0; known as the Santa Cruz tsunami). The sources of the two tsunamis are very close to each other (see asterisks in […]
A magnitude 7.0 normal-fault earthquake occurred in the Solomon Islands on 18 JUly 2015. This earthquake generated a small tsunami. The epicenter was ~40 km to the north of the 6 February 2013 Santa Cruz Mw 8.0 thrust earthquake. We studied these two events and realized that the recent normal-fault earthquake was possibly triggered by […]
We analyzed the trans Pacific tsunami that was generated in the Pacific Ocean following the 1 April 2014 Iquique earthquake offshore Chile. The Iquique (Chile) earthquake moment magnitude was 8.2 and occurred at the depth of around 25 km. The earthquake killed at least 7 and left around 200 injured. The resulting tsunami reached […]
The 11 March 2011 Tohoku (Japan) tsunami was a unique event in several ways. The tsunami caused 4-5 days of surface oscillations inside the Pacific Ocean. This was an indicative of long-mode excitation of the Pacific Basin. To further examine which modes of the Pacific Ocean were excited by the 2011 Tohoku (Japan) tsunami, Heidarzadeh […]
A large earthquake with magnitude M 6.3 occurred in City of Bam in Kerman province, southeast of Iran on 26 December 2003. The earthquake caused a death toll of ~35000. Shortly after the earthquake, we visited the city to assess the performance of the buildings and structures. Most of the houses were adobe houses or […]
A new source model has been recently published by Heidarzadeh and Satake (2014) for the Makran tsunami of 27 November 1945. To propose this source, all available data including tide gauge records at Mumbai (India) and Karachi (Pakistan), coastal deformation data along Pasni and Ormara (Pakistan) as well as inferred sea level oscillations at Port […]
Following the 24 September 2013 Pakistan Inland earthquake (M 7.7), a tsunami was generated in the Northwestern Indian Ocean offshore Iran, Pakistan, Oman, and India at the Makran subduction zone. It was an unusual tsunami because the epicenter of the earthquake was far inland (see Figure below). The earthquake killed 825 people in Pakistan, but […]
In this new “Earthquake and Tsunami”-Blog, I will talk about my field work in Japan in 2011 as well as my new research on tsunamis and large subduction zone earthquakes. My aim is to better understand what happened during the 2011 Japan tsunami and to explain my recent findings. As a result of my research in Japan, […]