Evaluation of earthquake parameters used in the Indonesian Tsunami Early Warning System

Madlazim; Tjipto Prastowo

doi:10.1007/s11589-016-0143-6

Earthquake Science > 2016 > 29(1): 27-33. > DOI: 10.1007/s11589-016-0143-6

Madlazim, Tjipto Prastowo (2016). Evaluation of earthquake parameters used in the Indonesian Tsunami Early Warning System. Earthq Sci 29(1): 27-33. DOI: 10.1007/s11589-016-0143-6

Citation:

Madlazim, Tjipto Prastowo (2016). Evaluation of earthquake parameters used in the Indonesian Tsunami Early Warning System. Earthq Sci 29(1): 27-33. DOI: 10.1007/s11589-016-0143-6

Citation:

Madlazim, Tjipto Prastowo (2016). Evaluation of earthquake parameters used in the Indonesian Tsunami Early Warning System. Earthq Sci 29(1): 27-33. DOI: 10.1007/s11589-016-0143-6

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Evaluation of earthquake parameters used in the Indonesian Tsunami Early Warning System

Madlazim^{1, 2, ,},
Tjipto Prastowo^{1, 2}

1.
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya, Surabaya 60231, Indonesia
2.
Research Center for Earth Science Studies, Faculty ofMathematics and Natural Sciences, Universitas Negeri Surabaya, Surabaya 60231, Indonesia

More Information

Corresponding author:
Madlazim, E-mail: madlazim@unesa.ac.id
Received Date: 07 Oct 2015
Accepted Date: 07 Jan 2016
Available Online: 30 May 2022
Published Date: 17 Feb 2016

Abstract

Abstract

Twenty-two of a total of 30 earthquake events reported by the Indonesian Agency for Geophysics, Climatology and Meteorology during the time period 2007-2010 were falsely issued as tsunamigenic by the Indonesian Tsunami Early Warning System (Ina-TEWS). These 30 earthquakes were of different magnitudes and occurred in different locations. This study aimed to evaluate the performance of the Ina-TEWS using common earthquake parameters, including the earthquake magnitude, origin time, depth, and epicenter. In total, 298 datasets assessed by the Ina-TEWS and the global centroid moment tensor (CMT) method were assessed. The global CMT method is considered by almost all seismologists to be a reference for the determination of these parameters as they have been proved to be accurate. It was found that the earthquake magnitude, origin time, and depth provided by the Ina-TEWS were significantly different from those given in the global CMT catalog, whereas the latitude and longitude positions of the events provided by both tsunami assessment systems were coincident. The performance of the Ina-TEWS, particularly in terms of accuracy, remains questionable and needs to be improved.
- Ina-TEWS,
- GLOBAL centroid moment tensor catalog,
- Performance,
- Accuracy,
- Earthquake parameters

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References (15)

References

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1.	Purnama, M.R., Adriano, B., Lahcene, E. et al. Improving Indonesia's tsunami early warning. Part II: Hybridized deep learning and metaheuristic algorithm for forecasting and optimizing. Ocean Engineering, 2025. DOI:10.1016/j.oceaneng.2025.121496
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Tjipto Prastowo

1.
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya, Surabaya 60231, Indonesia
2.
Research Center for Earth Science Studies, Faculty ofMathematics and Natural Sciences, Universitas Negeri Surabaya, Surabaya 60231, Indonesia

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Evaluation of earthquake parameters used in the Indonesian Tsunami Early Warning System

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