Duration magnitude estimate from local magnitude for moderate earthquakes in three provinces of Sulawesi

Duration Magnitude Scale for Anbar Seismic Station (ANB1), Iraq

“…The first study was made by, [4] who discovered a linear relationship between the logarithm of the surface-wave train's duration, the epicentral distance, and the magnitude of teleseisms (which vary from 5 to 8). This method has been applied since the 1960s and so far in many studies around the world to calculate the magnitude of local, regional and teleseismic earthquakes recorded by seismic networks and stations, e.g., in Sakhalin, Russia [5], Japan, [6], Puget Sound, USA [7], USA [8], Southern California, USA [9], USA [10], Oroville, California, USA [11], Southern California, USA [12], India [1] Northern Arizona, USA [13], northern Baja California, Mexico [3], Northwestern Italy [14], Italy, [15] Kuwait [16] Southern Italy [17], Northeast India [18] Central Iran [19], [20] Southern California, USA [21] and Canada [22].…”