CAMPBELL, M. D.; MCKAY, G. R.; WILLIAMS, R. L. The Tonga earthquake of 23 June, 1977 some initial observations. Bulletin of the New Zealand Society for Earthquake Engineering, [S. l.], v. 10, n. 4, p. 208–218, 1977. DOI: 10.5459/bnzsee.10.4.208-218. Disponível em: https://bulletin.nzsee.org.nz/article/view/1133. Acesso em: 16 apr. 2026.