--at this link is a real time map of the earth, centered over the "ring of fire", showing each and every earthquake, with colored rings showing "today's, yesterdays. and last 2 week's" quakes! Sioze of ring corresponds with the magnitude. there is a "mouse-over" too, more data and the richter scale as you hover the mouse over the ring!
there is a 6.1 in Northern Argentina right now, at 9 am estern on the 21st.
yes, a "weather map" for earthquakes, 24 hours a day!!