-
Chinese scientist Chang Heng invented the first seismoscope instrument that could register the occurrence of an earthquake
-
Luigi Dalmieri designed a mercury seismometer
-
The first modern intensity scale was produced. The credit goes to Michele de Rossi.
-
John Milne invented the first modern seismograph
-
Francois Forel of Switzerland publish a similar scale to Michele de Rossi
-
Italian volcanologist Giuseppe Mercalli created a twelve-degree scale of intensity
-
The modified Mercalli Intensity scale was develpoed by Harry Wood and Frank Neumann
-
The Richter Magnitude Scale was developed by Charles F Ritcher. It's expressed in decimals and whole numbers
A list shows items. A timeline shows sequence.
Use Timetoast to make dates, milestones, and turning points easier to understand in a clear visual format. Timetoast is a timeline maker for work, school, research, and stories.