TAIPEI (Taiwan News) -- A magnitude 4.7 earthquake rattled Taiwan's Taitung County at 2:48 a.m. this morning (Jan. 4), while three additional quakes jolted area over the next four hours, according to the Central Weather Bureau (CWB).
The epicenter of the quake was located 23.3 kilometers northwest of Taitung County Hall at a shallow depth of 5 kilometers, based on CWB data.
The earthquake's intensity, which gauges the actual effect of a temblor, registered a 4 on Taiwan's 7-tiered intensity scale in Taitung County, and a 2 in Pingtung County, Kaohsiung City, Hualien County, and Taichung City. A lesser intensity level of 1 was felt in Chiayi County, Tainan City, Nantou County, Yunlin County, Chiaiyi City, and Changhua County.
Located along the so-called Pacific Ring of Fire, Taiwan uses an intensity scale of 1 to 7, which gauges the degree to which a quake is felt in a specific location.
Three more earthquakes struck near Taitung over the course of the morning, with the most recent and largest of the three taking place at 6:59 a.m., measuring 4.2 on the Richter magnitude scale.
No injuries were reported from the quakes at the time of publication.