| Autor: |
Resa Idha, Endah P. Sari, Yusran Asnawi, Andrean V.H Simanjuntak, Syahrul Humaidi, Umar Muksin |
| Jazyk: |
English<br />Indonesian |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Journal of Applied Geospatial Information, Vol 7, Iss 1, Pp 825-831 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2579-3608 |
| DOI: |
10.30871/jagi.v7i1.5662 |
| Popis: |
On October 1, 2022, an earthquake with a magnitude (M) of 5.8 occurred in the Tarutung region, Indonesia and was associated with an active fault at a depth of 10 km. The earthquake fault with dextral mechanism is suitable with the pattern of active fault movement in Sumatra in the Northeast - Southwest direction. A total of 170 aftershocks occurred within a week span with magnitude variations of 1.7 – 4.0. In addition, the Tarutung earthquake was felt by the local peoples with an intensity of IV - VI MMI and caused 1 fatality, 25 injuries, and around 900 houses were damaged. Therefore, this study studies the characteristics of seismicity and damage caused by finding an appropriate 1-Dimensional seismic velocity model. The obtained 1-Dimensional speed model has varying values at a depth of 10 km with a speed of ~5.5 km/s and 30 km with a speed of ~7 km/s. The 1-D velocity model obtained has a convergent and unique solution with an RMS value < 1.0. Based on ground motion analysis after relocation, it was found that the high PGA and PGV values were in Tarutung. The PGA results reveal a high percentage value of >10% in Tarutung. This is consistent with the damage data and at the same time confirms that Tarutung is in a seismically active area. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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