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Gerakan massa di Pedukuhan Cengkehan, Kalurahan Wukirsari, Pakanewon Imogiri, Kabupaten Bantul, merupakan longsoran yang terjadi sejak tahun 2019. Longsoran bergerak aktif, terutama pada musim hujan. Akibat perubahan iklim global, selain mempengaruhi pola dan intensitas hujan yang cenderung ekstrim, juga berpengaruh terhadap penyebaran pandemi dan penyakit Covid-19. Kegiatan pengabdian ini merupakan bagian desiminasi hasil penelitian penanganan gerakan massa di perbukitan dari gunung api purba Giriloyo dan sekitarnya. Potensi gerakan massa dapat dikenali dari pencermatan sifat fisik melalui pelapukan batuan. Perubahan sifat fisik menunjukan derajat pelapukan batuan dengan menggunakan metode Geological Society of London yang dipublikasi mulai tahun 1990. Dari hasil penelitian diperoleh informasi bahwa gerakan massa merupakan campuran material tanah dan batuan yang lapuk. Material ini berasal dari tinggian lembah Sungai Cengkehan. Batuan lapuk berupa batuan vulkanik yaitu tuf dan basalt yang berumur Miosen Awal. Lereng basalt di tebing Sungai Cengkehan bagian utara lebih berpotensi longsor daripada lereng basalt di tebing selatan. Bencana longsor pada lereng batuan lapuk tersebut lebih diwaspadai ketika terjadi hujan dan atau gempa. Kejadian hujan lebat dengan intensitas lebih dari 2 jam dapat memicu longsoran di lereng bagian utara.

Community service activities were carried out in Siten, Sumbermulyo Village, Kapanewon Bambanglipuro, Bantul Regency. The counseling was attended by members of the Family Empowerment and Welfare (PKK) group. Since the 2006 great earthquake, the public has been educated on earthquake response. However, they do not know the relationship between geological features and the value of local wisdom. Earthquakes of small scale and intensity are still being felt. Through service activities, the participants understand the emergency location planning model after the earthquake disaster. The introduction of local wisdom values ​​in the existence of several places becomes a means of educating the existence of geological features in the earthquake disaster area. Some of these places include springs, historical heritage sites, and isolated hill of Gunung Cilik. Based on the optimization of the results of previous research on geological features and Google Earth, an earthquake evacuation location is recommended. Evacuation locations are directed at limestone hills, 1 km to the west from the service location. Google Map can be used by participants to identify the evacuation route. In the discussion, a simulation of the evacuation was proposed to be carried out

No abstract