Well, technically this is Friday tsunami blogging, but sometimes it's hard to tell the difference. Yesterday was the 50th anniversary of the 1958 Southeast Alaska earthquake and ensuing Lituya Bay megatsunami, a half-kilometer high wave which killed only a handful of people.
The earthquake happened on the Fairweather fault, a strike-slip fault which forms the main boundary between the Pacific and North American plates on the Alaska panhandle. Strike-slip earthquakes don't typically cause tsunamis directly - in a strike-slip event, the ground moves mostly horizontally, not vertically, so it doesn't displace any water to speak of. This tsunami was caused by a large chunk of mountain that fell into the ocean as a result of the earthquake.
The same structure which generates strong tidal currents within Lituya Bay also funneled the tsunami into a super-high wave. There's not much in this photo for scale, but wave damage was found at altitudes of up to 1,720 feet (524m).
Thanks for noting this date! I sailed into Lituya Bay in 1976 and will never forget the spectacle (although for some reason I didn't take photos--probably the curse of the place). Philip Fradkin wrote a hair-raising book about Lituya Bay that is well worth the read.