Geography and environment
of Israel and neighboring territories during the day (left) and night (right)
Israel is located in the Levant area of the Fertile Crescent region. The country is at the eastern end of the Mediterranean Sea, bounded by Lebanon to the north, Syria to the northeast, Jordan and the West Bank to the east, and Egypt and the Gaza Strip to the southwest. It lies between latitudes 29° and 34° N, and longitudes 34° and 36° E.
The sovereign territory of Israel (according to the demarcation lines of the 1949 Armistice Agreements and excluding all territories captured by Israel during the 1967 Six-Day War) is approximately 20,770 square kilometers (8,019 sq mi) in area, of which two percent is water. However Israel is so narrow that the exclusive economic zone in the Mediterranean is double the land area of the country. The total area under Israeli law, including East Jerusalem and the Golan Heights, is 22,072 square kilometers (8,522 sq mi), and the total area under Israeli control, including the military-controlled and partially Palestinian-governed territory of the West Bank, is 27,799 square kilometers (10,733 sq mi).
Despite its small size, Israel is home to a variety of geographic features, from the Negev desert in the south to the inland fertile Jezreel Valley, mountain ranges of the Galilee, Carmel and toward the Golan in the north. The Israeli coastal plain on the shores of the Mediterranean is home to most of the nation's population. East of the central highlands lies the Jordan Rift Valley, which forms a small part of the 6,500-kilometer (4,039 mi) Great Rift Valley. The Jordan River runs along the Jordan Rift Valley, from Mount Hermon through the Hulah Valley and the Sea of Galilee to the Dead Sea, the lowest point on the surface of the Earth. Further south is the Arabah, ending with the Gulf of Eilat, part of the Red Sea. Unique to Israel and the Sinai Peninsula are makhteshim, or erosion cirques. The largest makhtesh in the world is Ramon Crater in the Negev, which measures 40 by 8 kilometers (25 by 5 mi). A report on the environmental status of the Mediterranean Basin states that Israel has the largest number of plant species per square meter of all the countries in the basin.
Tectonics and seismicity
The Jordan Rift Valley is the result of tectonic movements within the Dead Sea Transform (DSF) fault system. The DSF forms the transform boundary between the African Plate to the west and the Arabian Plate to the east. The Golan Heights and all of Jordan are part of the Arabian Plate, while the Galilee, West Bank, Coastal Plain, and Negev along with the Sinai Peninsula are on the African Plate. This tectonic disposition leads to a relatively high seismic activity in the region. The entire Jordan Valley segment is thought to have ruptured repeatedly, for instance during the last two major earthquakes along this structure in 749 and 1033. The deficit in slip that has built up since the 1033 event is sufficient to cause an earthquake of Mw~7.4.
The most catastrophic known earthquakes occurred in 31 BCE, 363, 749, and 1033 CE, that is every ca. 400 years on average. Destructive earthquakes leading to serious loss of life strike about every 80 years. While stringent construction regulations are currently in place and recently built structures are earthquake-safe, as of 2007 the majority of the buildings in Israel were older than these regulations and many public buildings as well as 50,000 residential buildings did not meet the new standards and were "expected to collapse" if exposed to a strong quake.
Temperatures in Israel vary widely, especially during the winter. Coastal areas, such as those of Tel Aviv and Haifa, have a typical Mediterranean climate with cool, rainy winters and long, hot summers. The area of Beersheba and the Northern Negev have a semi-arid climate with hot summers, cool winters, and fewer rainy days than the Mediterranean climate. The Southern Negev and the Arava areas have a desert climate with very hot, dry summers, and mild winters with few days of rain. The highest temperature in the continent of Asia (54.0 °C or 129.2 °F) was recorded in 1942 at Tirat Zvi kibbutz in the northern Jordan River valley.
At the other extreme, mountainous regions can be windy and cold, and areas at elevation of 750 meters or more (same elevation as Jerusalem) will usually receive at least one snowfall each year. From May to September, rain in Israel is rare. With scarce water resources, Israel has developed various water-saving technologies, including drip irrigation. Israelis also take advantage of the considerable sunlight available for solar energy, making Israel the leading nation in solar energy use per capita (practically every house uses solar panels for water heating).
Four different phytogeographic regions exist in Israel, due to the country's location between the temperate and tropical zones, bordering the Mediterranean Sea in the west and the desert in the east. For this reason, the flora and fauna of Israel are extremely diverse. There are 2,867 known species of plants found in Israel. Of these, at least 253 species are introduced and nonnative. There are 380 Israeli nature reserves.