Washington: An earthquake measuring 5.9 hit
an area near the Costa Rican capital, the US government
The epicentre of the tremor, which occurred at 7:54 pm
local time (0154 GMT today), was located 41 kilometres (26
miles) north northwest of San Jose, according to the US
There were no immediate reports of casualties or damage.
The reading was based on the open-ended Moment Magnitude
scale, now used by US seismologists, which measures the area
of the fault that ruptured and the total energy released.