what kind of wind speed does it usually reach?
A "typhoon" has wind speed of 64–79 knots (73–91 mph; 118–149 km/h)
Typhoon
Since 2009 the Hong Kong Observatory has divided typhoons into three different classifications: "typhoon", "severe typhoon" and "super typhoon". A "typhoon" has wind speed of 64–79 knots (73–91 mph; 118–149 km/h), a severe typhoon has winds of at least , and a super typhoon has winds of at least . The United States' Joint Typhoon Warning Center (JTWC) unofficially classifies typhoons with wind speeds of at least 130 knots (67 m/s; 150 mph; 241 km/h)—the equivalent of a strong Category 4 storm in the Saffir-Simpson scale—as "super typhoons". However, the maximum sustained wind speed measurements that the JTWC uses are based on a 1-minute averaging period, akin to the U.S.' National Hurricane Center and Central Pacific Hurricane Center. As a result, the JTWC's wind reports are higher than JMA's measurements, as the latter is based on a 10-minute averaging interval.
where do most hurricanes typhoons and cyclones originate Pacific ocean
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Typhoon [SEP] Intensity classifications
A "tropical depression" is the lowest category that the Japan Meteorological Agency uses and is the term used for a tropical system that has wind speeds not exceeding . A tropical depression is upgraded to a "tropical storm" should its sustained wind speeds exceed . Tropical storms also receive official names from RSMC Tokyo. Should the storm intensify further and reach sustained wind speeds of then it will be classified as a "severe tropical storm". Once the system's maximum sustained winds reach wind speeds of , the JMA will designate the tropical cyclone as a "typhoon"—the highest category on its scale.