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Rivera, Marco; Del Carpio Calienes, José Alberto; Tavera, Hernando; Cruz Igme, John Edward; Vargas Alva, Katherine Andrea; Torres Aguilar, José Luis(Instituto Geofísico del Perú, 2021-02)
Se analiza las características de los lahares (o flujos de lodo volcánico), con origen en los volcanes Coropuna, Sabancaya, Chachani, Misti, Ubinas y Huaynaputina, ocurridos durante los periodos de lluvia de los años 2017 al 2020, siendo los lahares de los dos últimos años reportados por el CENVUL ...
Landslides are among the most frequent and dangerous mass removal processes around the globe. They can be triggered by different phenomena such as earthquakes, extraordinary rains, glacier outbursts, volcanic activity, among others. In this study, we reconstruct the origin and potential cause of a ...
We present the first results of OSL‐dated fluvial sands extracted from a riverside cave in the tropical Andes. The excellent agreement between the ages of the various samples allowed the calculation of a late Quaternary valley incision rate forced by ongoing uplift of an active Subandean fault‐propagation ...
On June 23, 2001 at 15:33 local time (20:33 UTC), a strong earthquake of magnitude Mw 8.2 shook the southern region of Peru, causing considerable material damage and the loss of 74 human lives. The epicenter was located in the sea near the city of Atico (Arequipa). As a coseismic effect, a local tsunami ...
Volcanic activity is always accompanied by the transfer of heat from the Earth’s crust to the atmosphere. This heat can be measured from space and its measurement is a very useful tool for detecting volcanic activity on a
global scale. MIROVA (Middle Infrared Observation of Volcanic Activity) is an ...
En la región sur del Perú, el día 16 de diciembre del 2020 ocurre un sismo de magnitud moderada (M5.5) y epicentro ubicado a 44 km SO de la ciudad de Arequipa (región Arequipa). El sismo ocurrió a una profundidad de 93 km (foco intermedio) y en general, presentó un área de percepción con radio desde ...
En el presente año (febrero-noviembre de 2020), el comportamiento dinámico del volcán Sabancaya se caracterizó por la ocurrencia de hasta un máximo de 69 explosiones en 24 horas, aunque en promedio se presentaron 23 explosiones por día. Estos eventos fueron acompañados de emisiones de ceniza que ...
A fin de evaluar los escenarios de posibles sismos de gran magnitud a ocurrir frente al borde occidental del Perú, se analiza los patrones de sismicidad y deformación cortical; además de los aportes científicos realizados por diversos autores sobre el pronóstico de ocurrencia de grandes sismos. El ...
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Lecocq, Thomas; Hicks, Stephen P.; Van Noten, Koen; Van Wijk, Kasper; Koelemeijer, Paula; De Plaen, Raphael S. M. ... (American Association for the Advancement of Science, 2020-09-11)
Human activity causes vibrations that propagate into the ground as high-frequency seismic waves. Measures to mitigate the coronavirus disease 2019 (COVID-19) pandemic caused widespread changes in human activity, leading to a months-long reduction in seismic noise of up to 50%. The 2020 seismic noise ...
Understanding the links between the magma differentiation processes, the magma plumbing system and the magma composition at arc volcanoes is of paramount importance for volcanic hazard assessment. In this work we focus on the post-glacial, Holocene, historical, and recent eruption products of Ubinas ...
