This afternoon another big redwood branch fell down outside my window, with a big crack and thud. Another one fell last week. These are branches about 3-4 inches in diameter, not the usual debris fall that happens on windy days.

I'm used to deodar branches falling, but this is the first time the redwoods have dropped major branches. I'm wondering if this is indicative of impending tree failure, or if it is typical redwood behavior.

I'm concerned because the 5 redwoods are only a couple feet from my apartment, and they are planted a couple feet apart (as a screen), so if one falls, there may be a domino effect.