1989 Loma Prieta earthquake.
October 19th at 5:04pm.
Earthquake measured 6.9 on the richter scale.
Occured doing the 1989 World Series.
63 people were killed.
Over 15,000 people were affected.
US $13 Billion in damages.
50ft of Oakland Bay Bridge collapsed.
Upper deck of Cyprus Viaduct collapsed onto lower deck, killing over 40 people.
Mount Pinatubo
First magmatic eruption on 3rd June 1991.
First explosive eruption on June 7th.
Climaxed on June 15th, and coincided with the arrival of Typhoon Yunya.
Over 4,000 people were killed.
Over 1 million people were affected.
US $7 Billion in damages.
Lost over 300m in height.
Second largest eruption in 20th Century.
That's all quite easy to remember. Other a few things, I wrote that from memory.