The quake, which struck at 5:45 pm (2245 GMT), was 602 kilometers (374 miles) deep.
Several parts of Muscat governorate will continue to receive light to moderate rain on Wednesday, according to the Met office.
MRMWR has said that citizens and residents must desist from digging wells for fresh water without a permit.
The Turkish army said the plane was shot down by two of its F-16s after it violated Turkish airspace 10 times within a five-minute period.
A security source at the site of the explosion said "most of the agents who were on the bus are dead."