نتایج جستجو برای: volcanic hazards
تعداد نتایج: 53741 فیلتر نتایج به سال:
Introduction Conclusions References
The Mayotte seismic sequence that started on 10 May 2018, with a main shock of magnitude Mw 5.9 15, followed by major offshore volcanic activity, raises several questions seismo-volcanic hazards in the Comoros region. unexpected size and duration crisis is an opportunity to reassess distribution seismicity near Island, but also regionally. We present comprehensive catalogue region including Moz...
There are ~750 active and potentially active volcanoes in Southeast Asia. Ash from eruptions of volcanic explosivity index 3 (VEI 3) and smaller pose mostly local hazards while eruptions of VEI ≥ 4 could disrupt trade, travel, and daily life in large parts of the region. We classify Southeast Asian volcanoes into five groups, using their morphology and, where known, their eruptive history and d...
Improving analyses of population exposure to potential natural hazards, especially sudden ones, requires more detailed geodemographic data. Availability of such information for large areas is limited by specific database requirements and their cost. This paper introduces and tests a new approach for refining spatio-temporal population distribution at high resolution by combining diverse geoinfo...
In the Supersites endeavour, Earth Observation (EO) is a key contribution with many national and european missions, with an important research contribution in the operable frame of GMES/Copernicus. Although the projects are incubators with the data and the geo-information they use or generate, they provide resources of key value to users for both response and prevention purposes. In particular,...
The conservation of geosites in a region can foster its sustainability and develop geotourism. These provide geoeducation, raise people’s awareness on natural hazards, increase their resilience. Low-income cities located tectonically active areas combine high geohazards with vulnerability low sustainability. Geosites these should be tool to decrease sustainable development. Mexico City is an id...
In the last few years, several advances have been made in the use of radar images to detect, map and monitor ground deformations. DInSAR (Differential Synthetic Aperture Radar Interferometry) and A-DInSAR/PSI (Advanced DInSAR/Persistent Scatterers Interferometry) technologies have been successfully applied in the study of deformation phenomena induced by, for example, active tectonics, volcanic...
Large calderas, or supervolcanoes, are sites of the most catastrophic and hazardous events on Earth, yet the temporal details of post-supereruption activity, or resurgence, remain largely unknown, limiting our ability to understand how supervolcanoes work and address their hazards. Toba Caldera, Indonesia, caused the greatest volcanic catastrophe of the last 100 kyr, climactically erupting ∼74 ...
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