Blar i Bergen Open Research Archive på forfatter "Shiddiqi, Hasbi Ash"
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The 30 June 2017 North Sea Earthquake: Location, Characteristics, and Context
Jerkins, Annie; Shiddiqi, Hasbi Ash; Kværna, Tormod; Gibbons, Steven John; Schweitzer, Johannes; Ottemöller, Lars; Bungum, Hilmar (Journal article; Peer reviewed, 2020)The Mw 4.5 southern Viking graben earthquake on 30 June 2017 was one of the largest seismic events in the Norwegian part of the North Sea during the last century. It was well recorded on surrounding broadband seismic ... -
Aftershock study of the 2019 Ambon earthquake using moment tensor inversion: identification of fault reactivation in northern Banda, Indonesia
Baskara, Aria W.; Sahara, David P.; Nugraha, Andri D.; Rusdin, Andi Azhar; Zulfakriza, Z.; Widiyantoro, Sri; Triyoso, Wahyu; Priyono, Awali; Puspito, Nanang T.; Shiddiqi, Hasbi Ash; Kusumawati, Dian; Rudyawan, Alfend; Elly, Erfin (Journal article; Peer reviewed, 2023)On September 26, 2019, an Mw 6.5 earthquake occurred 23 km northeast of Ambon City, Indonesia, followed by numerous aftershock series related to a complex fault network reactivation in the Ambon and Seram region. Using ... -
Crustal structure and intraplate seismicity in Nordland, Northern Norway: insight from seismic tomography
Shiddiqi, Hasbi Ash; Ottemöller, Lars; Rondenay, Stephane; Halpaap, Felix Julian; Gradmann, Sofie; Michalek, Jan (Journal article; Peer reviewed, 2022)The Nordland region, Northern Norway, situated in an intraplate continental setting, has the highest seismicity rate in mainland Norway. However, the exact cause of seismicity in this region is still debated. Better ... -
Implications of 3D Seismic Raytracing on Focal Mechanism Determination
Newrkla, Katharina; Shiddiqi, Hasbi Ash; Jerkins, Annie; Keers, Henk; Ottemöller, Lars (Journal article; Peer reviewed, 2019)The purpose of this study is to investigate apparent first‐motion polarities mismatch at teleseismic distances in the determination of focal mechanism. We implement and compare four seismic raytracing algorithms to compute ... -
Intraplate Earthquakes in Nordland, Northern Norway : Insight from Seismic Tomography and Earthquake Analysis
Shiddiqi, Hasbi Ash (Doctoral thesis, 2023-01-19)Intraplate-seismisitet refererer til jordskjelv i områder som ikke er påvirket av prosessene langs aktive plategrenser. Det totale seismiske momentet utløst fra intraplatejordskjelv er mye mindre enn fra jordskjelv i ... -
Minimum 1D velocity model and local magnitude scale for Myanmar
Shiddiqi, Hasbi Ash; Tun, Pa Pa; Ottemöller, Lars (Journal article; Peer reviewed, 2019)Earthquake monitoring in Myanmar has improved in recent years because of an increased number of seismic stations. This provides a good quality dataset to derive a minimum 1D velocity model and local magnitude (ML) scale ... -
On the potential for megathrust earthquakes and tsunamis off the southern coast of West Java and southeast Sumatra, Indonesia
Supendi, Pepen; Widiyantoro, Sri; Rawlinson, Nicholas; Yatimantoro, Tatok; Muhari, Abdul; Hanifa, Nuraini Rahma; Gunawan, Endra; Shiddiqi, Hasbi Ash; Imran, Iswandi; Anugrah, Suci Dewi; Daryono, Daryono; Prayitno, Bambang Setyo; Adi, Suko Prayitno; Karnawati, Dwikorita; Faizal, Lutfi; Damanik, Ruben (Journal article; Peer reviewed, 2022)High seismicity rates in and around West Java and Sumatra occur as a result of the Indo-Australian plate converging with and subducting beneath the Sunda plate. Large megathrust events associated with this process likely ... -
Seismicity modulation due to hydrological loading in a stable continental region: A case study from the Jektvik swarm sequence in Northern Norway
Shiddiqi, Hasbi Ash; Ottemöller, Lars; Rondenay, Stephane; Custódio, Susana; Gahalaut, Vineet K; Yadav, Rajeev K; Halpaap, Felix Julian; Gahalaut, Kalpna (Journal article; Peer reviewed, 2023)Seismic swarms have been observed for more than 40 yr along the coast of Nordland, Northern Norway. However, the detailed spatio-temporal evolution and mechanisms of these swarms have not yet been resolved due to the ... -
Source Study of the 24 August 2016 Mw 6.8 Chauk, Myanmar, Earthquake
Shiddiqi, Hasbi Ash; Pa Pa, Tun; Tun Lin, Kyaw; Ottemöller, Lars (Journal article; Peer reviewed, 2018)The source process of an intraslab intermediate‐depth earthquake (h=90 km) that occurred near Chauk, central Myanmar, on 24 August 2016 was investigated using teleseismic body‐wave inversion. The focal mechanism solution ...