first responders say two people suffered medical emergencies and died. 11 others were injured. even before sunrise, the apparent damage was widespread. homes slid off foundations. and inside, virtually everything was strewn across floloors. ovover 70,000 lost power. gas lines ruptured. for some, there was warning. state officials say california s myshake app alerted 3 million people thehe shake wasas comiming 10 secoconds bebefore the g ground started shaking. with damage assessment under way, today s quake comes exactly one year to the day a 6.2 tremor rocked the same regegion. toninight, for commununities liviving on shaky grground, justst under 100 aftershocks are rattling not just the region, but also nerves. miguel almaguer, nbc news. and just breaking this evening, we re learning that ukraine s president zelenskyy is expected to visit washington and address congress tomorrow night. garrett haake joins us. garrett, this comes as
The 'MyShake' app works thanks to ground motion sensors all over California. The amount of heads up you get depends on your distance to the quake's epicenter.