
Richter scale
/ˈrɪktə/
noun
GEOLOGY
- a numerical scale for expressing the magnitude of an earthquake on the basis of seismograph oscillations. The more destructive earthquakes typically have magnitudes between about 5.5 and 8.9; it is a logarithmic scale and a difference of one represents an approximate thirtyfold difference in magnitude.
Last night around 8pm there was a small earthquake near Tean in Staffordshire. It registered 3.3 on the richter scale, and houses near to it felt a jolt and their windows rattled.
My friend just asked if we felt anything? No, we didn’t feel a thing. We probably get more shaking from traffic driving past our house. Apparently the UK gets about a thousand earthquake s or tremors a year, and most are only 1 or 2 on the richter scale (or 30 or 900? times smaller). So although 3.3 is high in the UK it’s not bad. I think we may have had a 5 a few years ago.
I couldn’t find an image to use so I drew a ‘geological’ abstract instead, trying to draw something like a fracture or fault moving in the rocks below us….
