cause extensive damage, such as the 1906 San Francisco earthquake or the 1964 Good Friday earthquake near Anchorage, Alaska. California is well known for seismic activity and requires large structures to be earthquake resistant to minimize loss of life and property. Outside of devastating earthquakes, California experiences minor earthquakes on a regular basis. There have been about 100 significant earthquakes annually from 2010 to 2012. Past averages were 21 a year. This is believed to be due to the deep disposal of wastewater from fracking. None has exceeded a magnitude of 5.6, and no one has been killed. Other natural disasters Other natural disasters include: tsunamis around Pacific Basin, mud slides in California, and forest fires in the western half of the contiguous U.S. Although drought is relatively rare, it has occasionally caused major economic and social disruption, such as during the Dust Bowl (1931–1942), which resulted in widespread crop failures and dust storms, beginning in the southern Great Plains and reaching to the Atlantic Ocean. Consequences According to report by U.S. Census Bureau, in 2022 natural disasters led to the forced displacement of 3.3 million people, more than 1.3% of the U.S. adult population, with half of the displacements being caused by the hurricanes. The survey-report stated that in Florida, the devastation caused by Hurricanes Ian and Nicole resulted in the relocation of around 1 million people, or about one in every 17 adult residents. In Louisiana, where inhabitants were still dealing with the devastating results of Hurricane Ida the year before, more than 409,000 people, or almost one in every eight residents, were moved. Despite this, the Louisiana state saw a relatively calm hurricane season in 2022. Public lands The United States holds many areas for the use and enjoyment of the public. These include national parks, national monuments, national forests, wilderness areas, and other areas. For lists of areas, see the following articles: List of National Parks of the United States List of National Natural Landmarks List of U.S. National Forests List of U.S. Wilderness Areas Human In terms of human geography, the United States is inhabited by a diverse set of ethnicities and cultures. See also County (United States) Geographic centers of the United States Geography of Puerto Rico Geography's impact on colonial America Index of United States-related articles List of extreme points of the United States List of fjords of the United States List of