It was a decade battle (and my writing had to improve), but SCEC and the rest of the "community" recognizes the importance of the offshore, and I have been, and am now, funded by SCEC for mapping in Santa Monica Bay. "The tendency of faults offshore to be strike-slip" is a misconception: it is probablt comparable strike-slip to thrust to faults onshore south of the Transverse Ranges. We just mapped a blind thrust responsible for a 20x20 km anticlinorium offshore Manhattan Beach. This fault continues beneath the base of the San Pedro escarpment (working with "KB in Paradise" and others. It may be the upper part of the Compton Los-Alamitos fault. There is a 200 km-long, up to 50 km long anticlinorium that extends SSE from Santa Rosa Island. I have preliminary evidence that ikt is actively folding. It is bordered by a blind and seafloor fault. If you have folding on a trend parallel to the strike of a fault beneath, the fold MUST absorb a blind thrust component of slip. I would say a blind thrust system this size could make a pretty nice tsunami-never mind the oversteepened slopes on the flanks and the slides. In case you were not aware of these structures, they have only been identified as such by Davis and Namson 1994 NEHRP technical report, and in my rejected and pending proposals. Let's see, what else-the Channel Islands-all of them, are uplifteding above blind thrusts. Some are resstraining bends in strike-slip faults, but the nolrthern Channel Islands are very large....

Back to you points and questions: to acquire new data is expensive. But, I am helping coordinate an offer of donation of existing data by industry, as long as we can finds funds to convert 9 track tapes to modern media. This data set was presented (by others) at Earthscope last week. A large proposal to put in OBSs was rejected (I'm not involved). Large offshore earthquakes include 1925 Santa Barbara that leveled part of the town and killed, I think, 15-this was a M6.2 or so. 13 days after the earthquake on the San Andreas fault there was a large earthquake that damaged missions from Lompoc to Santa Barbara-this was over a M7. It had generally been assumed to be offshore Santa Barbara, but Toppazada thinks it was on teh next piece of the San Andreas, Dolan and Rockwell just published results from a trench on the San Cayatano and think this may have been 1812, but I still suspect the channel because of oral histories of what happened on Santa Rosa Island. In 1927 there was a M7 offshore Point Arguello (in my thesis area) 4 days after another M7 very close to its antipode. There was a M6 or so in 1973 near Pt Mugu, a 5.something near UCSB in 1978 that knocked over a lot of the shelves in the library (Petra, they are bolted across together now), a 5 something thrust earthquake ofshore Oceanside on 1986, damaging EQs at Santa Barbara in 1926 (I think) and 1941 (I think)-also, these Santa Barbara earthquakes tended to be on the same day or within 1 day...different years. OK, no one will read this if I makie it much longer-let's see-Oceanside thrust of Rivero, Shaw, and Mueller Geology recently-I've done some work on that and there is a large contractional fold limb in that area...

Chris