The US Geological Survey (USGS) said the strongest tremor at 12:32 p.m. (2332 GMT) measured 6.9, a magnitude capable of causing severe damage.
National Weather Service meteorologist Ian Lee says the earthquake occurred around 8 p.m. Meteorologist David Gurney says earthquakes of the 3.6 magnitude "are rare, but not unheard of'' in southeast Michigan.
China accidentally reported two major quakes which never happened: Earthquake administration.. indianexpress.com
The information stayed on its website for at least an hour, though did not appear on its microblog, which is how many people in China first learn of quakes. In a statement on its website, the administration said they had in fact been holding an emergency response exercise.
A strong but deep earthquake measuring 6.8 struck in Bolivia on Monday but there were no reports of damage or injuries, the US Geological Survey said.
A magnitude 5.5 earthquake jolted people in Delhi and the National Capital Region (NCR) on Wednesday night.
The Indian Meteorological Department (IMD) said the moderate intensity quake originated in Uttarakhand's Rudraprayag district at a depth of 30 kilometres.
The day after a vicious earthquake leveled apartment buildings, damaged hospitals and flattened an elementary school, Mexicans mobilized Wednesday for a massive rescue effort, digging in a frantic search for survivors.
As the death toll reached 230 people, with 100 in Mexico City and the rest distributed in surrounding states, Mexicans confronted scenes out of parents' worst nightmares as rescuers pulled children's bodies from the ruins of the primary school.
But across the capital, a surge of civic spirit took hold as thousands volunteered to provide medical care, food and water or to pick through buildings destroyed by Tuesday afternoon's quake, the second major temblor in the past month and the deadliest in three decades.
In the central Roma neighborhood, small stores stayed open around the clock, offering food to rescue workers and families of victims. A hardware store lent tools to people trying to claw through massive piles of debris.
In the capital, the 7.1-magnitude quake caused more than three dozen buildings to crumple and damaged hundreds more, a north-south band of destruction that scarred poor and wealthy neighborhoods alike.
At least 93 people died in the city, according to the coordinator of national civil defense, Luis Felipe Puente. That figure - and the overall death total of 223 as of late Wednesday afternoon - were revised downward slightly from earlier numbers released by the federal government.
"The priority continues to be rescuing people in collapsed structures and treating the wounded," President Enrique Peña Nieto wrote on Twitter on Wednesday, as he assessed damage in Mexico City and surrounding areas. Peña Nieto declared a three-day period of national mourning, the second time the government has made such a declaration this month.
The latest quake knocked out power across 40 percent of this city of 20 million, and rescue and medical services were stretched to their limits.
Authorities reported damage to at least 22 hospitals in and around Mexico City.
One, in Morelos, collapsed completely. Some 5,000 schools were damaged by the quake.
The destruction revived horrific memories on the anniversary of another massive quake in 1985
The earthquake caused extensive damage to Mexico City.
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