Two earthquakes, measuring 4.4 and 5.6 magnitude respectively, struck Nicaragua late Sunday, disrupting power supply and telecommunications, according to the country's seismological authorities. The quakes took place at 10:12 and 11:07 p.m. (0412 GMT and 0507 GMT Monday) respectively in north of the capital Managua. Strong tremor was felt in Managua, Masaya and some other western cities. There is no immediate report of casualties or property damage. Two strong earthquakes of magnitude 6.2 and 6.6 rocked the quake-prone country Thursday and Friday, followed by hundreds of aftershocks, killing one person and injuring several others. The Nicaraguan government has issued a "red alert" for more quakes on its Pacific coast.