[chrisser]

...in November the Earth will be passing through the same debris field that produced the 1908 Tunguska event.

Forgive my lack of knowledge on this subject and laziness in trying to find it myself, but do you know if this is the first time we will pass through that field since the 1908 event?

[plsvn]

but do you know if this is the first time we will pass through that field since the 1908 event?

We pass through this "field" once a year just as we pass through various comet debris fields once a year which cause meteor showers particular to that comet.

[USAF1985]

Yes. The first time since 1908.