New analysis of a photo taken in 1937 has led investigators to think it might show a piece of the landing gear from aviator Amelia Earhart's Lockheed Electra plane, which disappeared in June that year somewhere in the South Pacific.

The USGS says an earthquake with a magnitude of 7.4 hit southwest Mexico today.

The United States Geological Survey says it was 6.2 miles deep and about 120 miles east of Acapulco.

We'll have more on this story as it develops.

Update at 3:54 p.m. ET. Back To Normal:

NPR's Jason Beaubien, reporting from the Zocalo area of Mexico City, says officials report no deaths and no major damage.

To "strengthen our ability to continue providing the world's most insightful and investigative reporting in journalism," The New York Times says that starting in April it will limit non-paying NYTimes.com visitors to 10 free articles per month, down from the current 20.

The Times adds that:

Our collective mental image of Mexican artist Frida Kahlo has been informed, mostly, by the vibrant self-portraits she painted over the years. But she also had a collection of photographs — about 6,500 of them — that were held privately for decades after her death at the request of her husband, Diego Rivera.

Update at 3:35 p.m. ET: It's official. Peyton Manning is indeed joining the Denver Broncos. He's talking with reporters in Denver right now.

Our Original Post:

"And they have a deal," The Denver Post reports. "An NFL source confirmed Tuesday morning the Broncos and quarterback Peyton Manning have agreed to a five-year, $96 million deal."

George Zimmerman's statement to police about what 17-year-old Trayvon Martin was up to on Feb. 26 in Sanford, Fla., "is completely contradicted" by the boy's cellphone records, an attorney for Martin's family just said during a news conference in Fort Lauderdale, Fla.

Transcript

MICHEL MARTIN, HOST:

This is TELL ME MORE from NPR News. I'm Michel Martin. Coming up, spring has sprung, so a good greeting for today is not just, Happy Spring, but also Happy New Year if you celebrate the Persian holiday, Norouz. We'll find out more about it in just a few minutes.

Transcript

MICHEL MARTIN, HOST:

I'm Michel Martin and this is TELL ME MORE from NPR News. Coming up, later in our mom's conversation we will pick up on an important conversation we know many people are having around bullying. Last week, we heard from a 15-year-old who'd been bullied at school for years. Today, we'll hear how his mom felt about hearing about this in a documentary. That's coming up later in the program.

In this episode, Alan Farley and Gershwin biographer Philip Furia conclude their look at "The Firebrand of Florence" and consider the film musical "The Shocking Miss Pilgrim," for which Ira wrote lyrics to previously unused music by his late brother George.

Playlist:

From The Firebrand of Florence:

Night Music and Tarantella

A Rhyme for Angela

The World Is Full of Villains

You Have to Do What You Do Do

Love Is My Enemy

From The Shocking Miss Pilgrim:

Changing My Tune

Mayor Ed Lee is expected to announce today whether he will remove Sheriff Ross Mirkarimi from his position.