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Abstrak :
Singing is the most important element of the traditional music culture on Siberut, the largest of the Mentawai Islands (West Sumatra, Indonesia). There are various types of songs on the island. Some of them are related to the world of spirits and ancestors. These are mainly sung by shamans during healing ceremonies and rituals. Other songs are made up by men and women during their daily activities, when they are fishing out at sea or when they take a rest from collecting forest products. Various animals (birds, primates, reptiles) or natural forces (wind, thunder) provide inspiration for lyrics and melodies, as do special events, like the arrival of a logging company on the island). In this article, we discuss the process of recording the songs and other types of music of the island and the production of two CDs and the reactions of the singers and the community to the presentation of the CDs. In a context of decades of suppression of various aspects of the traditional culture (religion, tattoo, loincloth) documentation of a form of intangible culture and its positive appreciation can generate a sense of pride among a local community. In addition, we have added an extensive appendix to this article containing the lyrics of a number of songs in both the local language as well as in translation. It allows readers to get an idea of the poetic nature of the song literature of the Mentawaians.

Abstrak :
Penelitian ini dilakukan untuk menganalisis nilai PGA di Kepulauan Mentawai untuk segment Siberut dan segment Pagai berdasarkan variasi kedalaman di crust dan interplate dengan menggunakan persamaan empiris Si and Midorikawa (1999), Donovan (1973) serta Lin and Wu (2010). Kemudian nilai PGA yang didapatkan dari masing-masing persamaan empiris ini dibandingkan dengan shakemap dari USGS. Peta persebaran nilai PGA yang didapatkan dari perhitungan empiris menunjukan bahwa persamaan yang paling mendekati dengan nilai PGA pada shakemap adalah persamaan empiris Si and Midorikawa. Dari persamaan tersebut, selanjutnya dilakukan perhitungan untuk mencari nilai PGA dari Mmax setiap segment. Hasil yang diperoleh untuk segment Siberut, pada kedalaman crust memiliki nilai PGA sekitar 8.1915 – 11.1466 g dengan wilayah yang memiliki nilai PGA tertinggi adalah Siberut Utara. Sedangkan untuk kedalaman interplate memiliki nilai PGA sekitar 0.9658 – 3.3527 g dengan wilayah yang memiliki nilai PGA tertinggi adalah Siberut Selatan. Kemudian untuk segment Pagai, pada kedalaman crust memiliki nilai PGA sekitar 0.8859 – 8.2995 g dengan wilayah yang memiliki nilai PGA tertinggi adalah Pagai Selatan dan pada kedalaman interplate memiliki nilai PGA sekitar 1.1867 – 3.6882 g dengan wilayah yang memiliki nilai PGA tertinggi adalah Pagai Utara. ......The analysis of PGA values in the Mentawai Islands for the Siberut and Pagai segments was based on variations in crust and interplate using the empirical equations of Si and Midorikawa (1999), Donovan (1973) and Lin and Wu (2010). The PGA values obtained from each of these empirical equations were compared with the shakemap generated by USGS. The map derived from those empirical calculations shows that the maximum PGA value from the Si and Midorikawa empirical equation is the closest to the one generated by USGS based on the shakemap. From the chosen equation, we calculate the PGA value of Mmax for each segment. The PGA estimation on the Siberut segment of the crust shows values between 8.1915 – 11.1466 g, with the highest PGA value is North Siberut. While the one on the interplate has a PGA value, PGA values between 0.9658 – 3.3527 gl with the region that has the highest PGA value being South Siberut. Then, for the Pagai segment, the crust has a PGA value between 0.8859 – 8.2995 g, with the highest PGA value is South Pagai and the interplate having a PGA value between 1.1867 – 3.6882 g with the highest PGA value is North Pagai.