I also think there is no real increase in natural disasters. Media reporting makes them front page news and through global media we find out about all the earthquakes and volcanoes along with pictures/videos in every corner of the globe, whereas in previous decades it'd only make local news. Also the last 50 odd years have seen booms in civilian aviation, cars, high rise accomodation as well as increased populations, so when disaster strikes death tolls are often higher esp when buildings/bridges collapse with many people inside. The Iceland volcano would'nt have even been major news if it hadn't disrupted air travel across Europe, when it last erupted it was just as bad but made little news as very few people were directly affected.
Not sure of the time frame but China just had a 7+ quake which killed about 500 people, the 7+ Chilean quake killed hundreds of people, there was 7+ quake recently in Mexico fortunately it was centered in a sparsely populated area, Haiti 7+...this was all within a year.
That's happened in your recent memory?