The BBC is consuming its news slot this morning with hearsay about a
4.7 quake in SE England. There is some talk of an explosion. A viewer
sent in a picture of a seismograph that looks more like an explosion
to my untutored eyes.

The NEIC list says earthquake though. (Only just made it on -the
criteria is that outside the States, they do not list quakes under
4M.) http://earthquake.usgs.gov/eqcenter/...quakes_all.php

As a corollary to that, the item was on as I switched my TV on just
now. The picture was dire and I was thinking: "Interference.... what
does that mean. I'll have to see what the great Weatherlawyer had to
say previously on the subject." (Not having a database or a good
memory.)