Açeh - Böyük Sumatra fay xəttinin və yüksək seysmik aktivliyə malik, qərb sahili boyunca subduksiya zonalarının kəsiş­diyi, zəlzələlərə məruz qalan Indoneziyanın vilayətlərindən biridir. Son zamanlar fay xətlərinin xəritələnməsi ilə bağlı tədqiqatlar Açeh vilayətinin qərb hissəsindəki Açeh və Seulimum seqmentlərinə fokuslanmışdır. Bununla yanaşı, son 10 ildə fay xətlərinin düzgün xəritələnməsinə ehtiyacı olan bölgələrdə bir neçə zəlzələ baş verməsinə baxmayaraq, mərkəzi hissə hələ də öyrənilməmişdir. Buna görə də, bu tədqiqatda Açehin mərkəzi hissəsində seysmik aktivlik ilə fay strukturları arasındakı əlaqəni təhlil etmək üçün 200 m/piks yüksək həllediciliklə Qlobal Qravitasiya Modeli Plus (GGM+) istifadə edilmişdir. GGM+ qalıq anomaliyası Açeh, Pameu və Samalanga seqmentləri kimi aşağı qravitasiya ilə səciyyələnən geoloji strukturların mövcudluğunu göstərir. Fayların varlığını dəqiqləşdirmək məqsədilə Açeh, Bati, Samalanga və Alue Lintang – Peusangan seqmentlərinin xəritələnməsi üçün üfüqi törəmə anomaliyası kimi bəzi törəmə metodları da tətbiq edilmişdir. Şaquli törəmə Tringgadeng qırılmasının mövcudluğunu göstərir, bu qırılma 2016-cı ildəki Pidie Jaya zəlzələsinin mənbəyi hesab olunur. Beləliklə, maillik törəməsi Nissam qırılmasının da mövcudluğunu vizuallaşdıra bilər, bu isə digər filtrləmə metodlarında görünmür. Biz həmçinin Occam alqoritmi və sinqulyar parçalanma metodundan istifadə edərək 3D cazibə modelləşdirilməsi apardıq; sıxlıq qırılmanın dərinliyini və strukturunu göstərir, ümumilikdə 8 km dərinliyindədir ki, bu da GGM+ metodunun etibarlılığını təmin edir, xüsusən də cihazların istifadəsinin çətin olduğu dağlıq ərazilərdə qırılmaların öyrənilməsində.

Açar sözlər: Qravitasiya, qırılma, GGM +, Açex əyaləti, geoloji quruluş, 3D inversiya

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