Thouvenot, François. «What is the lowest magnitude threshold at which an earthquake can be felt or heard, or objects thrown into the air?». A: Fréchet. Historical Seismology: Interdisciplinary Studies of Past and Recent Earthquakes. 2. Dordrecht: Springer, 2008, p. 313–326 (Modern Approaches in Solid Earth Sciences). DOI10.1007/978-1-4020-8222-1_15. ISBN 978-1-4020-8221-4.