Are miners leaving?
Interval between blocks a few days ago was 10-15 min.
Here are timestamps of last 5 blocks
18131 Sep 22, 2015 at 3:35pm (UTC)
18132 Sep 22, 2015 at 4:35pm (UTC)
18133 Sep 22, 2015 at 5:10pm (UTC)
18134 Sep 22, 2015 at 4:28pm (UTC)
18135 Sep 22, 2015 at 5:59pm (UTC)
Was block 18133 mined before 18134 and 18132? Is that even possible?
Intervals between blocks (ignoring 18134) is now > 1 hour.
Last block was mined > 2 1/2 hours ago.
What's going on?
Very interesting observation

like you said is it even possible..... strange to see that lol