Los Gatos Creek (Santa Clara County)

Rancho Aptos was a 6,686-acre (27.06 km2) Mexican land grant in present day Santa Cruz County, California given in 1833 by Governor José Figueroa to Rafael Castro. The grant on the Monterey Bay was immediately downcoast of his sister, Martina Castro's Rancho Soquel, and upcoast of his father, José Joaquín Castro's Rancho San Andrés. Rancho Aptos stretched from the area just to the west of Aptos Creek to parts of Nisene Marks and Day Valley in the north, and Rio del Mar to the east, including present day Aptos.

Aptos (Ohlone for "The People") is an unincorporated town in Santa Cruz County, California. The town is made up of several small villages, which together form Aptos: Aptos Hills-Larkin Valley, Aptos Village, Cabrillo, Seacliff, Rio del Mar, and Seascape. Together, they have a combined population of 24,402.

Cabrillo College is a public community college in Aptos, California. It is named after the conquistador Juan Rodríguez Cabrillo and opened in 1959. Cabrillo College has an enrollment of about 9,700 students per term.

Seacliff is an unincorporated community in Santa Cruz County, California, United States that includes Seacliff State Beach. It is identified as one of several small communities with a combined population of 24,402 forming the unincorporated town of Aptos by the local Chamber of Commerce along with: Aptos Village Aptos Hills-Larkin Valley, a rural area north of State Route 1 Cabrillo Rio Del Mar, south of State Route 1, from Aptos Creek southeast to Seascape Seascape, south of State Route 1, centered on Seascape Beach ResortFor statistical purposes, the United States Census Bureau has defined Seacliff as a census-designated place (CDP). The census definition of the area may not precisely correspond to local understanding of the area with the same name. The 2010 United States census reported Seacliff's population was 3,267.

Aptos Creek is a southward flowing 9.5 miles (15.3 km) creek that begins on Santa Rosalia Mountain on the southwestern slope of the Santa Cruz Mountains in Santa Cruz County, California and enters Monterey Bay, at Seacliff State Beach in Aptos, California.

Seacliff State Beach is a state beach park on Monterey Bay, in the town of Aptos, Santa Cruz County, California. It is located off Highway 1 on State Park Drive, about 5 miles (8 km) south of Santa Cruz. The beach is most known for the concrete ship SS Palo Alto lying in the water. North of Seacliff State Beach is New Brighton State Beach.

Valencia Hall, in Santa Cruz County, California near Aptos, California, was built around 1884 by F.A. Hihn. It was listed on the National Register of Historic Places in 1984.It is a 30 by 40 feet (9.1 m × 12.2 m) structure built entirely of redwood. It was built on Valencia Creek as a meeting place and community center for a community planned to serve millhands and their families.

SS Palo Alto was a concrete ship built as a tanker at the end of World War I. Completed too late to see war service, she was mothballed until 1929, when she was intentionally grounded off Seacliff State Beach in the Monterey Bay, becoming part of a pleasure pier entertainment complex. Palo Alto was damaged by the sea, leading her to be stripped and used only as a fishing pier. Subsequent decades have seen her be further broken by the sea, but large sections of her wreck remain somewhat intact.

Rio del Mar (Spanish: Río del Mar, meaning "River of the Sea") is an unincorporated village in Santa Cruz County, California. Rio del Mar is one of several small villages that form the unincorporated community of Aptos, California. Its population was 9,128 as of the 2020 United States census.

Rancho Soquel was a 1,668-acre (6.75 km2) Mexican land grant in present-day Santa Cruz County, California given in 1833 by Governor José Figueroa to María Martina Castro y Amador. In 1844, Martina Castro was granted by Governor José Figueroa a further 32,702-acre (132.34 km2) grant known as the Soquel Augmentation. The Rancho Soquel grant along Monterey Bay includes present-day Soquel and Capitola. Rancho Aptos of her brother Rafael Castro formed the south boundary of the grant. The much-larger Soquel Augmentation grant lay inland from both of these, and comprised mainly mountain watershed land.

Day Valley is a census-designated place (CDP) in Santa Cruz County, California, United States. The population was 3,409 at the 2010 census.

The 1989 Loma Prieta earthquake occurred on California's Central Coast on October 17 at 5:04 p.m. local time. The shock was centered in The Forest of Nisene Marks State Park in Santa Cruz County, approximately 10 mi (16 km) northeast of Santa Cruz on a section of the San Andreas Fault System and was named for the nearby Loma Prieta Peak in the Santa Cruz Mountains. With an Mw magnitude of 6.9 and a maximum Modified Mercalli intensity of IX (Violent), the shock was responsible for 63 deaths and 3,757 injuries. The Loma Prieta segment of the San Andreas Fault System had been relatively inactive since the 1906 San Francisco earthquake (to the degree that it was designated a seismic gap) until two moderate foreshocks occurred in June 1988 and again in August 1989. Damage was heavy in Santa Cruz County and less so to the south in Monterey County, but effects extended well to the north into the San Francisco Bay Area, both on the San Francisco Peninsula and across the bay in Oakland. No surface faulting occurred, though many other ground failures and landslides were present, especially in the Summit area of the Santa Cruz Mountains. Liquefaction was also a significant issue, especially in the heavily damaged Marina District of San Francisco, but its effects were also seen in the East Bay, and near the shore of Monterey Bay, where a non-destructive tsunami was also observed.Because it happened during a national live broadcast of the 1989 World Series, the annual championship series of Major League Baseball, taking place between Bay Area teams San Francisco Giants and the Oakland Athletics, it is sometimes referred to as the "World Series earthquake", with the championship games of the year being referred to as the "Earthquake Series". Rush-hour traffic on the Bay Area freeways was lighter than normal because the game, being played at Candlestick Park in San Francisco, was about to begin, and this may have prevented a larger loss of life, as several of the Bay Area's major transportation structures suffered catastrophic failures. The collapse of a section of the double-deck Nimitz Freeway in Oakland was the site of the largest number of casualties for the event, but the collapse of human-made structures and other related accidents contributed to casualties occurring in San Francisco, Los Altos, and Santa Cruz.