Two massive quakes in 48 hours spark 'megaquake week' warnings
• MSNTwo major quakes - magnitude 7.0 in Alaska and 7.5 in northern Japan - struck within 48 hours, causing tsunami alerts, infrastructure damage, and raising fears of larger events.
Two major quakes - magnitude 7.0 in Alaska and 7.5 in northern Japan - struck within 48 hours, causing tsunami alerts, infrastructure damage, and raising fears of larger events.
