Because of Earth's Data Net crash in 2409, there were no surviving records concerning Southern California, Earth America from 2100 to 2250. But the experts do know that during that period there were either 1 or 2 massive earthquakes.
“Records from 2250 show that several old cities had been replaced by a single new city, San Angeles. Humanity had defied nature by building this new city directly across the earthquake fault line, on the vast artificial platform we call the California Land Raft.”
Note: Probably a combination of Los Angeles and San Bernardino (City) or San Andreas (fault name).
There are 400 islands on this platform that are all connect with flexible bridges. Each island rests on 8 huge, automatically adjusting legs.
"...The giant supporting legs of these islands are made out of diamene, and the island platforms are formed of connected diamene strips.”
The Islands were abandoned in 2380. Now the seagulls and other large birds make their home in the ruins of the tall buildings, treating the islands as their own.
Currently, 23 of the islands nearest the fault line have collapsed and are inaccessible. 30 more are near collapsing so are no longer accessed by the archaeologists.
Because this area still suffers from earthquakes and the land raft islands are degrading a lot, the dig site is considered too hazardous for foundation classes. Additional all teams have to work in pairs
Each land raft has a central park with a swimming pool and that is where the accommodation domes and equipment domes are located. Since the parks are not in a dangerous area, it is safe to use the pool and be out in the park without impact suites. All danger areas are marked off so the archaeologists know where they can't wander without suites.
Solar Storm warnings: When ever there is a solar storm warning all land rafts are evacuated because if there was an earthquake during a solar storm, there would be no way to leave one the islands.
Real World Information
about the San Andreas Fault Line... California isn't going to fall off into the ocean, but by the 28th century there is a very real possibility that the entire California cost line will look totally different. The San Andreas Fault Line is where the two titanic plates meet and are rubbing against each other as they move. The Pacific plate is moving North West and the North America Plate is moving South- Southwest. This will result in the area that Los Angeles is in will shift further and further north. This rubbing and bumping against each other is what causes the earthquakes.
The Pacific Plate is moving to the northwest at a speed of between 7 and 11 centimeters (cm) or ~3-4 inches a year. The North American plate is moving to the west-southwest at about 2.3 cm (~1 inch) per year driven by the spreading center that created the Atlantic Ocean, the Mid Atlantic Ridge.
- Edwards, Janet. Earth Flight (Earth Girl) (p. 52). Prometheus Books. Kindle Edition.
- Edwards, Janet. Earth Flight (Earth Girl) (p. 56). Prometheus Books. Kindle Edition.