Keit said:The last parade of planets of this type occurred in 1982
Interesting! The 1982 alignment occurred on March 10th. I didn't find any major earthquake soon after this date. But on March 28th, 18 days after the planetary alignment, El Chichon experienced 3 major plinian eruptions deemed the "most powerful of the 20th Century". It killed at least 1,900 people, released 4 times more sulfur than Mount Saint Helen's eruption in 1980, the sulfur release induced a 0.4-0.6 degree temperature drop in the Northern atmosphere. Prior to the 1982 event, El Chichon had not experienced any substantial eruption for more than 5 centuries.
However there is one major difference between 1982 and now. At the time, the geomagnetic field was strong and partly protected us from Solar flares. It's not the case anymore.