Title
Precursory Motion and Time-Of-Failure Prediction of the Achoma Landslide, Peru, From High Frequency PlanetScope Satellites
Date Issued
16 October 2023
Access level
open access
Resource Type
Journal
Abstract
Landslide time-of-failure prediction is crucial in natural hazards, often requiring precise measurements from in situ instruments. This instrumentation is not always possible, and remote-sensing techniques have been questioned for detecting precursors and predicting landslides. Here, based on high frequency acquisitions of the PlanetScope satellite constellation, we study the kinematics of a large landslide located in Peru that failed in June 2020. We show that the landslide underwent a progressive acceleration in the 3 months before its failure, reaching at most 8 m of total displacement. The high frequency of satellite revisit allows us to apply the popular Fukuzono method for landslide time-of-failure prediction, with sufficient confidence for faster moving areas of the landslide. These results open new opportunities for landslide precursors detection from space, but also show the probable seldom applicability of the optical satellites for landslide time-of-failure prediction.
Volume
50
Issue
19
OCDE Knowledge area
Geología
Scopus EID
2-s2.0-85173450332
Source
Geophysical Research Letters
Resource of which it is part
Geophysical Research Letters
ISSN of the container
00948276
Source funding
Centre National d’Etudes Spatiales
Sources of information: Directorio de Producción Científica Instituto Geológico Minero y Metalúrgico