FN Archimer Export Format PT J TI Risk communication during seismo-volcanic crises: the example of Mayotte, France BT AF Devès, Maud H. Lacassin, Robin Pécout, Hugues Robert, Geoffrey AS 1:1,2;2:1;3:3;4:1; FF 1:;2:;3:;4:; C1 Université de Paris, Institut de physique du globe de Paris, CNRS UMR 7154, 75005 Paris, France Université de Paris, Institut Humanités Sciences Sociétés, Centre de Recherche Psychanalyse Médecine et Société, CNRS EA 3522, 75013 Paris, France Université de Paris, Collège international des sciences territoriales, CNRS FR 2007, 75013 Paris, France C2 UNIV PARIS, FRANCE UNIV PARIS, FRANCE UNIV PARIS, FRANCE IN DOAJ IF 4.6 TC 2 UR https://archimer.ifremer.fr/doc/00704/81560/86032.pdf https://archimer.ifremer.fr/doc/00704/81560/86033.pdf https://archimer.ifremer.fr/doc/00704/81560/94518.pdf https://archimer.ifremer.fr/doc/00704/81560/94519.pdf LA English DT Article CR MAYOBS MAYOBS1 MAYOBS2 BO Marion Dufresne AB On 10 May 2018, an active seismic crisis began on French island of Mayotte, which a year later will be shown to be related to offshore volcanic activity. It affects a vulnerable territory exposed to risks of many kinds (poverty, violence, lack of basic resources). In the absence of known events in human memory, the population is naive with regard to seismic and volcanic hazards. The concern is therefore very strong. In spite of a large number of publications, the communication set up by the main actors of the risk chain does not answer the population's concern. To understand why, we analyse a large corpus of the textual communications (press releases, web pages, scientific bulletins, reports, etc.) issued by the authorities and scientists from May 2018 to April 2021. We draw lessons on the communication strategy put in place in the first three years of the crisis; and we issue recommendations for improvement in the future, in Mayotte, but also elsewhere in contexts where comparable geo-crises may happen. We notably stress the importance of ensuring that communication is not overly technical, that it aims to inform rather than reassure, that it focuses on risk and not only on hazard and that it provides clues to possible risk scenarios. PY 2022 PD JUL SO Natural Hazards And Earth System Sciences SN 1561-8633 PU Copernicus GmbH VL 22 IS 6 UT 000810656400001 BP 2001 EP 2029 DI 10.5194/nhess-22-2001-2022 ID 81560 ER EF