MEXICO CITY (REUTERS) - A minor earthquake struck Mexico City on Thursday (July 18), the latest in a series of small tremors that have shaken buildings and jangled nerves across the Mexican capital over the past week.

The magnitude 2.2 quake was registered at 1.55pm local time (2.55am on Friday, Singapore time) in the central neighbourhood of Alvaro Obregon, the National Seismological Service (SSN) said in a statement on Twitter.

There were no immediate reports of damage or injuries, according to the city's civil protection authority.

A report published on Wednesday by the SSN and the National Autonomous University of Mexico found that 16 small earthquakes have struck Mexico City's central Miguel Hidalgo district between July 12-17.

Situated at the intersection of three tectonic plates, Mexico is one of the world's most earthquake-prone countries.

The capital is seen as particularly vulnerable due to its location on top of an ancient lake bed.