Despite its size and proximity to a large population, there was no subsequent tsunami and there were no reported fatalities. In this paper, the elastic dislocation is used to compute the co-seismic Earth rotation change due to the 2012 Sumatra earthquake (Mw8.
Meng et al. 6). The 11 April 2012 magnitude 8.6 earthquake offshore of Sumatra was the largest measured earthquake along a strike-slip boundary that modern seismological instruments have ever recorded. This year's largest earthquake, a magnitude 8.6 temblor on April 11 centered in the East Indian Ocean off Sumatra, did little damage, but it triggered quakes around the world for at … One of the largest ever earthquakes to cause only minor damage was also recorded with the dual quakes – the April Mw8.6 and Mw8.2 strike-slip earthquakes in the Indian Ocean off Indonesia. A magnitude 6.7 earthquake struck Chile, near Valparaíso, on April 17, at a depth of 37 km. In the past decade, however, the subduction of crust below Sumatra has generated three extremely large tectonic events. Polar motion and variation in LOD ( Δ LOD) are estimated by adopting three fault models and we compare it to the co-seismic earth … A magnitude 6.8 earthquake struck Papua New Guinea, about 137 km north of Lae, on April 17 at a depth of 208.2 km. The 2012 Mw 8.6 Sumatra earthquake is the largest ever recorded, the others being the 1998 Mw 8.1 Antarctic plate earthquake and the 2004 Mw 8.1 Tasman Sea earthquake [Robinson, 2011]. Co-seismic Earth’s rotation change caused by the 2012 Sumatra earthquake. One person died of a heart attack and another due to the loss of power at a local hospital.
2012 was a interesting year for successive earthquakes with many multiple quakes causing damage.