Efficient risk communication is a vital way to reduce the vulnerability of individuals when facing emergency risks, especially regarding earthquakes. Efficient risk communication aims at improving the supply of risk information and fulfilling the need for risk information by individuals. Therefore, an investigation into individual-level information seeking behavior within earthquake risk contex...

People in the locality of earthquakes are publishing anecdotal information about the shaking within seconds of their occurrences via social network technologies, such as Twitter. In contrast, depending on the size and location of the earthquake, scientific alerts can take between two to twenty minutes to publish. We describe TED (Twitter Earthquake Detector) a system that adopts social network ...

This paper introduces the damage statistics of reinforced concrete buildings after the 1985 Mexico Earthquake, the 1990 Ruzon (Philippines) Earthquake, the 1992 Erzincan (Turkey) Earthquake, and the 1995 Hyogo-ken Nanbu (Kobe) Earthquake. These data were obtained in severely damaged areas in each earthquake through the inventory damage investigation of the Architectural Institute of Japan teams...

Monitoring of earthquake faults and volcanoes contributes to our understanding of their dynamic mechanisms and to our ability to predict future earthquakes and volcanic activity. We report here on spatial and temporal variations of seismic velocity around the seismogenic fault of the 2016 Kumamoto earthquake [moment magnitude (Mw) 7.0] based on ambient seismic noise. Seismic velocity near the r...

The earthquake is usually a big disaster that causes several death and mortalities. Post earthquake crisis is an important situation for management. The recent 2015 Nepal earthquake is one of the most destructive earthquakes in history. In post earthquake crisis, lack of facilities, destroyed of infrastructures and limitation of transportation can be expected. This can superimpose the situation...

G reat earthquakes of magnitude 8.5 or larger occur infrequently. For a nearly 40-y period after the February of 1965 M 8.7 Rat Islands, Alaska earthquake, the world did not experience a single great earthquake; however, in the 7 y since late December of 2004, there have been a barrage of five great earthquakes. These earthquakes include the 2004 M 9.1 Sumatra, Indonesia earthquake; the 2005 M ...

Ruff, L.J., 1992. Asperity distributions and large earthquake occurrence in subduction zones. In: T. Mikumo, K. Aki, M. Ohnaka, L.J. Ruff and P.K.P. Spudich (Editors), Earthquake Source Physics and Earthquake Precursors. Tectonophysics. 211: 61-83. Plate tectonics and the seismic gap hypothesis provide the framework for long-term earthquake forecasting of plate boundary earthquakes. Unfortunate...

Over 2000 earthquakes happen every year in Japan, so that this country is often called earthquake-ridden (Government of Japan, 2006). There exists a serious problem to prevent the occurrence of earthquake-induced disasters, such as fire, short-circuits, gas leakage, etc. With the recent advent of nation-wide telecommunication networks, real-time earthquake information can be received at every h...

∗Graduate School Student, Earthquake Research Institute, University of Tokyo (1-1-1 Yayoi, Bunkyo, Tokyo, 113-0032 ∗∗Ph.D., Earthquake Research Institute, University of Tokyo (1-1-1 Yayoi, Bunkyo, Tokyo, 113-0032) ∗∗∗Ph.D., Earthquake Research Institute, University of Tokyo (1-1-1 Yayoi, Bunkyo, Tokyo, 113-0032) ∗∗∗∗Ph.D., Department of Civil Engineering, University of Tokyo (7-3-1 Hongo, Bunky...

The succession and growth strategy of a spring microbial community under earthquake action were investigated. The majority of pre-earthquake isolates belonged to the Gammaproteobacteria, including two numerically dominant Stenotrophomonas sp. RB25 and Acinetobacter sp. RB11 (r-strategists). The predominant post-earthquake isolates were Alphaproteobacteria, with Rhizobium sp. RA42 (K-strategists...