2009 L'Aquila earthquake concrete elements of the fallen buildings "seemed to have been made poorly, possibly with sand". An official at Italy's Civil Protection Agency, Franco Barberi, said that "in California, an earthquake like this one would not have killed a single person". According to Italian media, L'Aquila's chief prosecutor has opened a probe into possible criminal blame for the collapses. Many people reported seeing peculiar sightings of light glows, flashes, lightning, flames and fireballs, all of which were considered candidates for earthquake light. 241 luminous phenomena were collected including photos and videos. At least 99 of such phenomena occurred before the main
April 2015 Nepal earthquake at a shallow depth of . Assuming that 25 April earthquake was the largest event in this seismic episode, Nepal could expect more than 30 aftershocks greater than magnitude 5 over the following month. As of 24 May 2016, 459 aftershocks had occurred with different epicenters and magnitudes equal to or above 4 M (out of which 51 aftershocks are equal to or above 5 M and 5 aftershocks above 6 M) and more than 20,000 aftershocks less than 4 M. A second major earthquake occurred on 12 May 2015 at 12:50 NST with a moment magnitude (M) of 7.3M