Migration of seismicity and earthquake interactions monitored by GPS in SE Asia triple junction: Sulawesi, Indonesia

Christophe Vigny, Hugo Perfettini, Andrea Walpersdorf, Anne Lemoine, Wim Simons, Danny val Loon, Boudewijn Ambrosius, Colleen Stevens, Rob Mc Caffrey, Peter Morgan, Yehuda Bock, Cecep Subarya, Parluhutan Manurung, Joenil Kahar, Hasanuddin Abidin, Samad Abu

    Research output: Contribution to journalArticle

    21 Citations (Scopus)

    Abstract

    [1] Global Positioning System (GPS) measurements made in Sulawesi, Indonesia, from 1992 to 1999 detected coseismic and transient postseismic deformation related to the 1 January 1996, Mw = 7.9 earthquake on the North Sulawesi (Minahassa) trench. These motions are superimposed on the long-term secular motion (40 mm/yr) of the left-lateral Palu fault in central Sulawesi and continued for about 1.5–2 years. Following the earthquake, a string of earthquakes (of magnitude >6) migrated along the Minahassa trench, from west to east. Subsequently, two earthquakes of magnitude >6 occurred on or near the Palu fault migrating toward the south. Modeling the increase in Coulomb stress generated by the successive earthquakes agrees with the hypothesis of interacting events. An unclamping effect, possibly due to fluid migration in the Palu area, is also suggested by the stress computations and the detected (GPS) displacements
    Original languageEnglish
    Pages (from-to)2231-2241
    Number of pages11
    JournalJournal of Geophysical Research
    Volume107
    Issue number10
    Publication statusPublished - 2002

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    Indonesia
    triple junction
    global positioning systems
    Global Positioning System
    earthquakes
    Global positioning system
    seismicity
    Earthquakes
    GPS
    earthquake
    interactions
    trench
    strings
    Asia
    Fluids
    fluid
    fluids
    modeling

    Cite this

    Vigny, C., Perfettini, H., Walpersdorf, A., Lemoine, A., Simons, W., val Loon, D., ... Abu, S. (2002). Migration of seismicity and earthquake interactions monitored by GPS in SE Asia triple junction: Sulawesi, Indonesia. Journal of Geophysical Research, 107(10), 2231-2241.
    Vigny, Christophe ; Perfettini, Hugo ; Walpersdorf, Andrea ; Lemoine, Anne ; Simons, Wim ; val Loon, Danny ; Ambrosius, Boudewijn ; Stevens, Colleen ; Mc Caffrey, Rob ; Morgan, Peter ; Bock, Yehuda ; Subarya, Cecep ; Manurung, Parluhutan ; Kahar, Joenil ; Abidin, Hasanuddin ; Abu, Samad. / Migration of seismicity and earthquake interactions monitored by GPS in SE Asia triple junction: Sulawesi, Indonesia. In: Journal of Geophysical Research. 2002 ; Vol. 107, No. 10. pp. 2231-2241.
    @article{2ed3e641a89d4a0abaaa3c91fd89ad99,
    title = "Migration of seismicity and earthquake interactions monitored by GPS in SE Asia triple junction: Sulawesi, Indonesia",
    abstract = "[1] Global Positioning System (GPS) measurements made in Sulawesi, Indonesia, from 1992 to 1999 detected coseismic and transient postseismic deformation related to the 1 January 1996, Mw = 7.9 earthquake on the North Sulawesi (Minahassa) trench. These motions are superimposed on the long-term secular motion (40 mm/yr) of the left-lateral Palu fault in central Sulawesi and continued for about 1.5–2 years. Following the earthquake, a string of earthquakes (of magnitude >6) migrated along the Minahassa trench, from west to east. Subsequently, two earthquakes of magnitude >6 occurred on or near the Palu fault migrating toward the south. Modeling the increase in Coulomb stress generated by the successive earthquakes agrees with the hypothesis of interacting events. An unclamping effect, possibly due to fluid migration in the Palu area, is also suggested by the stress computations and the detected (GPS) displacements",
    author = "Christophe Vigny and Hugo Perfettini and Andrea Walpersdorf and Anne Lemoine and Wim Simons and {val Loon}, Danny and Boudewijn Ambrosius and Colleen Stevens and {Mc Caffrey}, Rob and Peter Morgan and Yehuda Bock and Cecep Subarya and Parluhutan Manurung and Joenil Kahar and Hasanuddin Abidin and Samad Abu",
    year = "2002",
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    Vigny, C, Perfettini, H, Walpersdorf, A, Lemoine, A, Simons, W, val Loon, D, Ambrosius, B, Stevens, C, Mc Caffrey, R, Morgan, P, Bock, Y, Subarya, C, Manurung, P, Kahar, J, Abidin, H & Abu, S 2002, 'Migration of seismicity and earthquake interactions monitored by GPS in SE Asia triple junction: Sulawesi, Indonesia', Journal of Geophysical Research, vol. 107, no. 10, pp. 2231-2241.

    Migration of seismicity and earthquake interactions monitored by GPS in SE Asia triple junction: Sulawesi, Indonesia. / Vigny, Christophe; Perfettini, Hugo; Walpersdorf, Andrea; Lemoine, Anne; Simons, Wim; val Loon, Danny; Ambrosius, Boudewijn; Stevens, Colleen; Mc Caffrey, Rob; Morgan, Peter; Bock, Yehuda; Subarya, Cecep; Manurung, Parluhutan; Kahar, Joenil; Abidin, Hasanuddin; Abu, Samad.

    In: Journal of Geophysical Research, Vol. 107, No. 10, 2002, p. 2231-2241.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Migration of seismicity and earthquake interactions monitored by GPS in SE Asia triple junction: Sulawesi, Indonesia

    AU - Vigny, Christophe

    AU - Perfettini, Hugo

    AU - Walpersdorf, Andrea

    AU - Lemoine, Anne

    AU - Simons, Wim

    AU - val Loon, Danny

    AU - Ambrosius, Boudewijn

    AU - Stevens, Colleen

    AU - Mc Caffrey, Rob

    AU - Morgan, Peter

    AU - Bock, Yehuda

    AU - Subarya, Cecep

    AU - Manurung, Parluhutan

    AU - Kahar, Joenil

    AU - Abidin, Hasanuddin

    AU - Abu, Samad

    PY - 2002

    Y1 - 2002

    N2 - [1] Global Positioning System (GPS) measurements made in Sulawesi, Indonesia, from 1992 to 1999 detected coseismic and transient postseismic deformation related to the 1 January 1996, Mw = 7.9 earthquake on the North Sulawesi (Minahassa) trench. These motions are superimposed on the long-term secular motion (40 mm/yr) of the left-lateral Palu fault in central Sulawesi and continued for about 1.5–2 years. Following the earthquake, a string of earthquakes (of magnitude >6) migrated along the Minahassa trench, from west to east. Subsequently, two earthquakes of magnitude >6 occurred on or near the Palu fault migrating toward the south. Modeling the increase in Coulomb stress generated by the successive earthquakes agrees with the hypothesis of interacting events. An unclamping effect, possibly due to fluid migration in the Palu area, is also suggested by the stress computations and the detected (GPS) displacements

    AB - [1] Global Positioning System (GPS) measurements made in Sulawesi, Indonesia, from 1992 to 1999 detected coseismic and transient postseismic deformation related to the 1 January 1996, Mw = 7.9 earthquake on the North Sulawesi (Minahassa) trench. These motions are superimposed on the long-term secular motion (40 mm/yr) of the left-lateral Palu fault in central Sulawesi and continued for about 1.5–2 years. Following the earthquake, a string of earthquakes (of magnitude >6) migrated along the Minahassa trench, from west to east. Subsequently, two earthquakes of magnitude >6 occurred on or near the Palu fault migrating toward the south. Modeling the increase in Coulomb stress generated by the successive earthquakes agrees with the hypothesis of interacting events. An unclamping effect, possibly due to fluid migration in the Palu area, is also suggested by the stress computations and the detected (GPS) displacements

    M3 - Article

    VL - 107

    SP - 2231

    EP - 2241

    JO - Journal of Geophysical Research: Oceans

    JF - Journal of Geophysical Research: Oceans

    SN - 0148-0227

    IS - 10

    ER -

    Vigny C, Perfettini H, Walpersdorf A, Lemoine A, Simons W, val Loon D et al. Migration of seismicity and earthquake interactions monitored by GPS in SE Asia triple junction: Sulawesi, Indonesia. Journal of Geophysical Research. 2002;107(10):2231-2241.