Born on this day in 1900, Charles F. Richter was the inventor of the Richter magnitude scale that measures the intensity of earthquakes.
Known more commonly as the Richter scale, the scale was invented by Richter in 1935. It measures the magnitude of an earthquake on a logarithmic scale of 0 to 10. Each number on the scale refers to an event that is 10 times more powerful than an event with a number before it. This means an earthquake with a magnitude of 4 is 10 times stronger, and releases approximately 32 times more energy, than an earthquake with a magnitude of 3.
The Richter scale has now been replaced by the Moment Magnitude scale that calculates the magnitude and strength of earthquakes around the world. Despite this, the media commonly, but mistakenly, uses the term Richter scale when identifying the device that measures earthquakes.
- Earthquakes lower than 2.5 on the Richter scale are almost never felt by humans.
- Every year, around the world there are millions of earthquakes.
- On March 11, 2011, an 8.9 magnitude earthquake in Japan altered the earth’s mass distribution and shortened the day by around 1.8 microseconds.
- Approximately 90% of the earthquakes in the world occur in the Ring of Fire in the basin of the Pacific Ocean.
Join us at McDonalds, 2750 W 104th Ave, Federal Heights, CO, from 9AM to 10AM, Wednesday, April 26th for coffee, breakfast, laughter, and geocaching camaraderie. Small TBs for discovery or moving on are always welcome. McDonalds sells food and beverages for your consumption, but purchase is not required to attend. Come on out, we love to see new cachers and seasoned cachers. All are welcome.
Kids playground area is open.