Parkfield is a village in Monterey County, California. As of 2004 road signs announce the population as 37 but some sources list the population as 900. Location in the state of California Formed 1850 Seat Salinas Area  - Total  - Water 9,767 km² (3,771 mi²) 1,163 km² (449 mi²) 11. ... 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ...

Parkfield is located at 35.45'11.45"N, 120.41'48.08"W¹. Its elevation is 1,530 feet. The following is a list of sources used in the creation of Wikipedia articles on various geographic topics and locations, such as cities, counties, states, and countries. ...

The town itself is located in the central coastal range in Central California. Mining used to be a prosperous activity in this community, but the mines were exhausted below economic recovery levels and the industry moved elsewhere. Today, it is a small town of about 900 people who are mostly ranchers and farmers or merchants supporting these activities. There is a small tourism industry in the town that basis itself on the prospect of earthquakes (see the geology section below). The Parkfield slogan is, "Eat here when it happens, Sleep here when it happens." The Central Coast is an area of California, extending from Santa Cruz in the north to Santa Barbara in the south, but centering primarily on Monterey County, California. ... A tourist boat travels the River Seine in Paris, France Beaches make popular tourist resorts. ...

Geology

Parkfield lies along the San Andreas Fault, one of the longest and most geologically active faults. Parkfield traditionally has an earthquake of 6 or greater magnitude every 22 years. In 1985, the US Geological Survey predicted that there would be a major earthquake in this community in 1993, but no such earthquake came until September 28, 2004 when a magnitude 6.0 earthquake struck at 10:15 am Pacific Daylight Time. As the earthquake was eleven years overdue it lends some credence to the folk saying "a watched pot never boils". The additional time did offer the opportunity to add improvements in instrumentation as the technology was further developed. View of the San Andreas Fault on the Carrizo Plain in central California The San Andreas Fault is a geological fault, known as a right-lateral strike-slip fault, that spans a length of roughly 800 miles (1287 kilometers) through California. ... Global earthquake epicenters, 1963–1998 An earthquake is a sudden and sometimes catastrophic movement of a part of the Earths surface. ... The United States Geological Survey (USGS) is a scientific agency of the United States government. ... The Richter magnitude test scale (or more correctly local magnitude ML scale) assigns a single number to quantify the size of an earthquake. ... Time zones are areas of the Earth that have adopted the same standard time, usually referred to as the local time. ...

Parkfield is the most closely observed earthquake zone in the world. Scientists measure the strain in rocks, heat flow, and geomagnetism constantly around Parkfield. The observation of the San Andreas fault in Parkfield will hopefully help scientists understand earthquakes and maybe some day predict major earthquakes along the San Andreas fault and across the world. The cause of Earths magnetic field (the surface magnetic field) is not known for certain, but is possibly explained by dynamo theory. ...

Since 1985, the United States Geological Survey has been working on a project known as "The Parkfield Experiment", a long-term research project on the San Andreas fault. "The experiment's purpose is to better understand the physics of earthquakes - what actually happens on the fault and in the surrounding region before, during and after an earthquake." This article is about the year. ... The United States Geological Survey (USGS) is a scientific agency of the United States government. ...

In 2004, work began just north of Parkfield on the San Andreas Fault Observatory at Depth (SAFOD). The goal of SAFOD is to drill a hole nearly 2.5 miles (4 kilometers) into the Earth's crust and into the San Andreas Fault. An array of sensors will be installed to capture and record earthquakes that happen near this area. This is expected to be completed midyear 2005. It will be located at the source of numerous microquakes that have a magnitude of around 1.0. The San Andreas Observatory at Depth (SAFOD) is a National Science Foundation project located near the town of Parkfield, California that will drill down nearly 1. ...

See also

• Parkfield earthquake

Activity snapshot 35 hours after Sept 28, 2004 large earthquake. ...

External link

• The Parkfield, California, Earthquake Experiment
• Parkfield area current and recent activity map