Cook et al. (2021) used seismic data from 76 broadband stations in Uttarakhand Himalaya to detect and evaluate the scope of early warning systems for mass wasting and floods in the Himalayan region. On 2021-02-07, Uttarakhand region of India experienced severe landslides and trolled over 200 lives. The signals of the events were observed up to 100 km from the disaster site and demonstrate the potential for these far-away monitoring stations to be useful for early warning. The records of the event at two of stations are shown in Fig.9. This discovery suggests a different way to monitor such remote Himalayan regions for mass wasting hazards.  
    WIHG studied this disaster using seismological data, satellite imagery and numerical modelling and estimated that \(27\times 10^{3}\ m^{3}\) of rock and glacier-ice collapsed from the steep north face of the Ronti Peak (Shugar et al., 2021; Tiwari A., et al., 2022). The main rock-fall followed by a noteworthy sequence of small events recorded by nearby seismic stations. The main event appears to have been initiated by precursory signals for nearly 2:30 h. The seismic data of three nearby stations within 50 km distance also distinguished debris flow and hitting obstacles from other seismic sources. The proximal high-quality seismic data allowed estimation of debris-flow speed and reconstruction of the complete chronological sequence, from the initiation of the nucleation phase to the occurrence of the rock-fall.