Seismic swarms, fault plane solutions, and stress tensors for são Miguel Island central region (Azores)

Journal of Seismology

Volumn 16, Issue 3, 2012, Pages 389-407

  Silva, Rita ^a   Havskov, Jens ^b   Bean, Chris ^c   Wallenstein, Nicolau ^a  

^a UNIVERSITY OF THE AZORES   (Portugal)

^b UNIVERSITY OF BERGEN   (Norway)

^c UNIVERSITY COLLEGE DUBLIN   (Ireland)

Author keywords

Azores; Fault plane solutions; S o Miguel Island; Seismic swarms; Stress inversion

Indexed keywords

ACTIVE FAULT; AMPLITUDE; EARTHQUAKE MECHANISM; EARTHQUAKE SWARM; FAULT PLANE; HYDROTHERMAL FLUID; P-WAVE; SEISMICITY; STRESS FIELD; TENSION;

AZORES; PORTUGAL; SAO MIGUEL;

EID: 84862013933     PISSN: 13834649     EISSN: None     Source Type: Journal    
DOI: 10.1007/s10950-012-9275-x     Document Type: Article

References (54)

1. Bonagura M, Damiano N, Saccorotti G (2004) Seismicity at Fogo and Furnas Volcanoes (São Miguel Is., Azores): evidences for fluid involvement. Atti del 23°Convegno Nazionale, 5 pp
2. Borges JF (2003) Fonte sísmica em Portugal-algumas impli-cações na Geodinâmica da região Açores-Gibraltar. Ph.D. thesis, University of Évora, 305 pp
3. Borges J, Bezzeghoud M, Buforn E, Pro C, Fitas A (2007) The 1980, 1997 and 1998 Azores earthquakes and some seismo-tectonic implications. Tectonophysics 435:37-54
4. Carmo R (2004) Geologia estrutural da região Povoação-Nordeste (Ilhade S. Miguel, Açores). M.Sc. thesis, University of Azores, 121 pp
5. Carmo R, Ferreira T, Gaspar JL, Madeira J (2009) Stress-fields at S. Miguel island (Azores): first approach (poster). International Summer School "Field volcanological laboratory: the Nisyros and the adjoining volcanoes, Greece-a window on the pre-eruptive magma processes". IAV, Greece, 25-30 Setembro
6. Cruz V, Coutinho R, Carvalho M, Oskarsson N, Gislason S (1999) Chemistry of waters from Furnas volcano, São Miguel, Azores: fluxes of volcanic carbon dioxide and leached material. J Volcanol Geotherm Res 92:151-167
7. Duffield W, Muffler L (1984) Geothermal Resources of São Miguel Island, Azores, Portugal. US Geol Surv Open-file report 84-287, pp. 21
8. Escuer M (2006) Improving seismic Vp and Vs models of the Azores Archipelago. M.Sc. thesis, University of Azores, 99 pp
9. Farrel J, Husen S, Smith R (2009) Earthquake swarm and b-value characterization of the Yellowstone volcano-tectonic system. J Volcanol Geotherm Res 188:260-276
10. Ferreira T (2000) Caracterização da actividade vulcânica da ilha de S. Miguel (Açores): vulcanismo basáltico recente e zonas de desgaseificação. Avaliação de riscos. Ph.D. thesis, University of Azores, 248 pp
11. Fischer T (2005) West-Bohemian earthquake swarms and their dynamics. Ph.D. thesis, Faculty of Mathematics and Physics, Charles University (Prague), 37 pp
12. Fischer T, Horálek J (2005) Slip-generated patterns of swarm microearthquakes from West Bohemia//Vogtland (central Europe): evidence of their triggering mechanism? J Geophys Res 110, (B05S21)
13. Gandino A, Guidi M, Merlo C, Mete L, Rossi R, Zan L (1985) Preliminary model of the Ribeira Grande geothermal field (Azores Islands). Geothermics 14(1):91-105
14. Gaspar J, Ferreira T, Queiroz G, Wallenstein N, Pacheco J, Guest J, Duncan A, Cole P (1995) Evolução morfoestru-tural do vulcão das Furnas (ilha de S. Miguel, Açores). Universidade do Porto, Faculdade de Ciências, Museu e Laboratório Mineralógico e Geológico. IV Congresso Nacional de Geologia, Memória no. 4, pp. 999-1003
15. Giampiccolo E, Musumeci C, Malone S, Gresta S, Privitera E (1999) Seismicity and stress-tensor inversion in the Central Washington Cascade Mountains. Bull Seism Soc Am 89:811-821
16. Guest J, Gaspar J, Cole P, Queiroz G, Duncan A, Wallenstein N, Ferreira T, Pacheco J (1999) Volcanic Geology of Furnas Volcano, São Miguel, Azores. J Volcanol Geotherm Res 92:1-29
17. Hardebeck J, Shearer P (2002) A new method for determining first-motion focal mechanisms. Bull Seism Soc Am 92 (6):2264-2276
18. Hardebeck J, Shearer P (2003) Using S/P amplitude ratios to constrain the focal mechanisms of small earthquakes. Bull Seism Soc Am 93(6):2434-2444
19. Havskov J, Ottemöller L (1999) SeisAn earthquake analysis software. Seism Res Lett 70:532-534
20. Hensch M, Riedel C, Reinhardt J, Dahm T, The NICE-People (2008) Hypocenter migration of fluid-induced earthquake swarms in the Tjörnes Fracture Zone (North Iceland). Tec-tonophysics 447:80-94
21. Hill D (1977) A model for earthquake swarms. J Geophys Res 82(8):1347-1352
22. Hipólito A (2009) Geologia estrutural da Ilha Graciosa-enqua-dramento no âmbito da Junção Tripla dos Açores. M.Sc. thesis, University of Azores, 155 pp
23. Husen S, Taylor R, Smith R, Healser H (2004) Changes in geyser eruption behavior and remotely triggered seismicity in Yellowstone National Park produced by the 2002 M 7.9 Denali fault earthquake, Alaska. Geology 32(6):537-540
24. Jónsson S, Alves M, Sigmundsson F (1999) Low rates of deformation of the Furnas and Fogo Volcanoes, São Miguel, Azores, observed with the Global Positioning System, 1993-1997. J Volcanol Geotherm Res 92:83-94
25. Konstantinou K, Lin C, Liang W, Chan Y (2009) Seismogenic stress field beneath the Tatun Volcano Group, northern Taiwan. J Volcanol Geotherm Res 187:261-271
26. Lee WHK, Bennett R, Meagher L (1972) A method for estimating magnitude of local earthquakes from signal duration. US Geol Surv Open-file report, 28 pp
27. Legrand D, Calahorrano A, Guillier B, Rivera L, Ruiz M, Villagómez D, Yepes H (2002) Stress tensor analysis of the 1998-1999 tectonic swarm of northern Quito related to the volcanic swarm of Guagua Pichincha volcano, Ecuador. Tectonophysics 344:15-36
28. Lienert BR, Havskov J (1995) A computer program for locating earthquakes both locally and globally. Seism Res Lett 66:26-36
29. Lourenço N, Luís J, Miranda M (1997) Azores triple junction bathymetry. Edited map by University of Lisboa (Faculty of Sciences) and by University of Algarve
30. Luís J, Miranda J, Galdeano A, Patriat P, Rossignol J, Mendes Victor L (1994) The Açores Triple Junction evolution since 10 Ma from an aeromagnetic survey of the Mid-Atlantic Ridge. Earth Planet Sci Lett 125:439-460
31. Michael A (1984) Determination of stress from slip data: faults and folds. J Geophys Res 89(B13):11517-11526
32. Michael AJ (1987a) The use of focal mechanisms to determine stress: a control study. J Geophys Res 92:357-368
33. Michael AJ (1987b) Stress rotation during the Coalinga aftershock sequence. J Geophys Res 92:7963-7979
34. Michael A, Ellsworth W, Oppenheimer D (1990) Coseismics stress changes induced by the 1989 Loma Prieta, California earthquake. Geophys Res Lett 17(9):1441-1444
35. Mogi K (1963) Some discussions on aftershocks, foreshocks and earthquake swarms-the fracture of a semi-infinite body caused by an inner stress origin and its relation to the earthquake phenomena (third paper). Bull Earthq Res Inst 41:615-658
36. Notcutt G, Davies F (1999) Biomonitoring of volcanogenic fluoride, Furnas Caldera, São Miguel, Azores. J Volcanol Geotherm Res 92:209-214
37. Nunes J, Oliveira C (1999) Actividade sísmica do Vulcão do Fogo, Ilha de São Miguel (Açores). Actas do I Simpósio de Meteorologia e Geofísica-Comunicações de Geofísica, pp 55-60
38. Queiroz G (1997) Vulcão das Sete Cidades (S. Miguel, Açores) -História eruptiva e avaliação do hazard. Ph.D. thesis, University of Azores, 226 pp
39. Ramsey J, Huber M (1987) The tectonics of modern structural geology, volume 2: folds and fractures. Academic, London, pp 309-700
40. Reasenberg P, Oppenheimer D (1985) FPFIT, FPPLOT, and FPPAGE: FORTRAN computer programs for calculating and displaying earthquake fault-plane solutions. US Geol Surv Open-file report, 85-739, 109 pp
41. Saccorotti G, Wallenstein N, Ibáñez J, Bonagura M, Damiano N, La Rocca M, Quadrio A, Silva R, Zandomeneghi D (2004) A seismic field survey at Fogo-Furnas volcanoes, Sao Miguel Island, Azores. Geophy Res Abstr 6:04493
42. Sánchez J, Wyss M, McNutt S (2004) Temporal-spatial variations of stress at Redoubt Volcano, Alaska, inferred from inversion of fault plane solutions. J Volcanol Geotherm Res 130:1-30
43. Senos M, Nunes J, Moreira V (1992) Estudos da estrutura da crosta e manto superior nos Açores. In: Oliveira CS, Lucas ARA, Correia Guedes JH (eds) Monografia 10 anos após o sismo dos Açores de 1 de Janeiro de 1980-aspectos técnico-científicos, vol. I. LNEC, Lisboa, pp 205-214
44. Silva R (2004) Características da sismicidade na região central da Ilha de São Miguel (Açores): identificação e análise de fam-ílias sísmicas. M.Sc. thesis, University of Azores, 136 pp
45. Silva A, Duffield W, Muffler L (1985) Geothermal studies of Agua de Pau Volcano, São Miguel, Azores. Geotherm Resour Counc Trans 9(II):395-399
46. Snoke JA, Munsay JW, Teague AG, Bollinger GA (1984) A program for focal mechanism determination by combined use of polarity and SV-P amplitude ratio data. Earth Notes 55(3):15
47. Spicák A, Horálek J (2001) Possible role of fluids in the process of earthquake swarm generation in the West Bohemia/Vogtland seismoactive region. Tectonophysics 336:151-161
48. Suetsugu D (1998) Practice on source mechanism, IISEE Lecture note, Tsukuba, Japan, 104 pp
49. Trota A (2008) Crustal deformation studies in S. Miguel and Terceira Islands (Azores). Volcanic unrest evaluation in Fogo/Congro area (S. Miguel). Ph.D. thesis, University of Azores, 281 pp
50. Tryggvason E, Dibble R, Okada H (1989) Água de Pau volcano/ seismic crisis of 1989. Final report on the UNESCO/ WOVO Volcanology mission to São Miguel, Azores, 2 to 8 August 1989. Relatório final da missão UNESCO/ WOVO, CV-INIC, Universidade dos Açores. Not published documents, 26 pp
51. Wallenstein N (1999) Estudo da história recente e do comporta-mento eruptivo do Vulcão do Fogo (S. Miguel, Açores). Avaliação preliminar do hazard. Ph.D. thesis, University of Azores, 266 pp
52. Zandomeneghi D (2007) Passive and active seismic tomography of volcanic islands: São Miguel (Portugal) and Deception (Antarctica). Ph.D. thesis, University of Granada, 335 pp
53. Zandomeneghi D, Almendros J, Ibáñez J, Saccorotti G (2008) Seismic tomography of Central São Miguel, Azores. Phys Earth Planet Inter 167:8-18
54. Zoback M (1992) First- and second-order patterns of stress in the lithosphere: the world stress map project. J Geophys Res 97(B8):11703-11728