Where the plates meet, their relative motion determines the type of boundary: convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries.The lateral relative movement of the plates typically ranges from zero to 100 mm annually. Divergent boundaries (Constructive) occur where two plates slide apart from each other. 2  At zones of ocean-to-ocean rifting, divergent boundaries form by seafloor spreading, allowing for the formation of new ocean basin.
Ponderosa, CA 5 and 7 day long range forecast, current conditions, satellite, radar, warnings, historical archive, local news and much more. It is currently 36Â°F (2.2Â°C) and Fog. Outlook:Today.
San Marcos, California, gets 14 inches of rain per year. The US average is 39. Snowfall is 0 inches. The average US city gets 26 inches of snow per year. The number of days with any measurable precipitation is 34. On average, there are 265 sunny days per year in San Marcos, California. The July high is around 84 degrees. The January low is 44. Sperling's comfort index for San Marcos is a 81 out of 100, where a higher score indicates a more comfortable year-around climate. The US average for the comfort index is 54.