The Southern California Eathquake Center features a variety of links to information on recent and historic earthquakes and faults, as well as seismological data from analog and digital stations and instruments. Materials include an interactive map of southern California showing recent earthquake activity (last hour, last day, last week), a searchable catalog of data on earthquakes from 1932-present, ... Full description.

This activity consists of two exercises on determining recurrence interval; one, a hypothetical example, and the other, using real data from the San Andreas Fault. They provide the learner with a good idea of how valuable the concept can be in assessing earthquake hazards, and of a few of the problems associated with determining and correctly applying recurrence intervals in fault studies. The learner ... Full description.

In this exercise, learners will plot earthquake hypocenters along a cross-section in an attempt to 'image' a fault deep beneath the surface. The hypocenter data is from the aftershock sequence of the 1986 North Palm Springs, CA earthquake. This activity is suitable for learners who have a good understanding of high school algebra and geometry. This activity can be typically accomplished during a 50-minute ... Full description.

This teacher's guide provides directions for building three-dimensional models from foam blocks to demonstrate plate tectonic principles, plate boundary interactions and the geometry and relative motions of faulting of geologic layers. References are included. Full description.

This portal provides access to an extensive selection of web-based teaching resources in structural geology. It features basic information on rock types, faults, folds, and other structures; virtual maps and field trips; and on strain and rheology. There is also a page of links to external sites on structural geology. Full description.

This activity, which can be performed by the teacher and an assistant, or by students working in pairs, shows the mechanism of seafloor spreading. Two pieces of paper are pulled apart from between two desks or tables, while one student marks the pages with bands of color to represent areas of reversed and normal magnetic polarity. It includes background material explaining the layers of Earth, types ... Full description.

This set of guides covers the geology, seismology, hydrology, and physical geography of the San Andreas Fault in the area of Wallace Creek in San Luis Obispo County, California. Materials available here include a downloadable trail guide for Wallace Creek; an interactive guide with information on the earthquakes, the fault, and plate tectonics; a downloadable guide from the Geologic Society of America ... Full description.