Quoc: The 2017 Central Mexico earthquake struck at 13: 14 CDT (18: 14 UTC) on 19 September 2017 with an estimated magnitude of M 7.1 and strong shaking for about 20 seconds. Its epicenter was about 55 km (34 mi) south of the city of Puebla. The earthquake caused damage in the Mexican states of Puebla and Morelos and in the Greater Mexico City area, including the collapse of more than 40 buildings. 370 people were killed by the earthquake and related building collapses, including 228 in Mexico City, and more than 6,000 were injured.

Answer this question based on the passage: when did the 7.1 earthquake in mexico happen?
HW Chung: OK, some thoughts:
The important part for answering this question is: The 2017 Central Mexico earthquake struck at 13: 14 CDT (18: 14 UTC) on 19 September 2017 with an estimated magnitude of M 7.1 and strong shaking for about 20 seconds. The answer is 13 : 14 CDT ( 18 : 14 UTC ) on 19 September 2017.