Their database was the vocabulary of 87 Indo-European languages. Atkinson and Gray looked at what linguists call cognates: words that are so similar in form and meaning, and so systematic in sound correspondences, that they must have a common origin.n the first place, if the Europeans, on the one hand, and the Indo-Iranians, on the other, had once lived together as agriculturists in Anatolia, they ought to have a common vocabulary for agricultural items, which unfortunately is not the case.
1994 Northridge earthquake. The 1994 Northridge earthquake occurred on January 17, at 4:30:55 a.m. PST and had its epicenter in Reseda, a neighborhood in the north-central San Fernando Valley region of Los Angeles, California. It had a duration of approximately 10â20 seconds.
Tour of the Rupture. Earthquake ruptures travel at phenomenal speeds. Seismologists have estimated the average speed of the 1906 rupture along the San Andreas Fault to the north of the epicenter to be 8,300 mi/hour (3.7 km/sec), and 6,300 mi/hour (2.8 km/sec) to the south.y comparison, the 1989 Loma Prieta earthquake had a rupture length of only 25 miles. The San Andreas fault today has locked and creeping segments along its approximately 800 mile (1300 km) length in California.