Disasters occur when hazards and vulnerability meet. Out of 100 disasters reported worldwide, only 20 occur in Africa, but Africa suffers 60% of all disaster-related deaths. This is probably due to the type of hazards that affect this continent, to under-reporting, and to the fact that under the circumstances prevailing in Africa, it is easy for any disaster to escalate and multiply its impact....

Mount Garibaldi Volcanic System (MGVS) is the southernmost member of Belt (GVB), northern (Canadian) segment Cascade Arc. Temporally episodic explosive to effusive eruptions may be associated with peak ice unloading after glacial maxima. Rapid and widespread deglaciation overlying sheet, rebound, have altered physical characteristics landscape whilst system thought been in long repose for over ...

Explosive volcanic eruptions can occur within days to years after an earthquake, suggesting a causal relation between them. Such paired seismic–volcanic events in the past, which occurred on human timescale, only be confirmed by field relationship of eruptive products. The Southern Kusandong Tuff (SKT) is ignimbrite Cretaceous backarc basin Korea, shows north-to-south variations grain component...

Damavand volcano is located 60 km to the East North- East of Tehran. It is a dormant stratovolcano outcrop in the Alborz Mountains of northern Iran and is the highest mountain (5670 m) in the Middle East and West Asia. Mazandaran Province, one of the most populous provinces by population density, Semnan and Gorgan provinces further east are neighbours of the Damavand. Volcanism in Damavand goes...

Marked changes in human dispersal and development during the Middle to Upper Paleolithic transition have been attributed to massive volcanic eruption and/or severe climatic deterioration. We test this concept using records of volcanic ash layers of the Campanian Ignimbrite eruption dated to ca. 40,000 y ago (40 ka B.P.). The distribution of the Campanian Ignimbrite has been enhanced by the disc...

Landslides are one of several natural hazards. As other natural hazards, landslides are difficult to predict, and their forecasts are uncertain. The uncertainty depends on the poor understanding of the phenomena that control the slope failures, and on the inherent complexity and chaotic nature of the landslides. This is similar to other natural hazards, including hurricanes, earthquakes, volcan...

Questionnaires are popular and fundamental tools for acquiring information on public knowledge and perception of natural hazards. Questionnaires can provide valuable information to emergency management agencies for developing risk management procedures. Although many natural hazards researchers describe results generated from questionnaires, few explain the techniques used for their development...

The vent-hosted hydrothermal system of Ruapehu volcano is normally covered by a c. 10 million m3 acidic crater lake where volcanic gases accumulate. Through analysis of eruption observations, granulometry, mineralogy and chemistry of volcanic ash from the 1995^1996 Ruapehu eruptions we report on the varying influences on environmental hazards associated with the deposits. All measured parameter...