MyShake App Surges to #3 on App Store After California Earthquake in June 2026

On June 23, the MyShake app held the 58th position in the App Store's Weather category. By the next day, it had climbed 55 places to rank 3rd, where it remained for the subsequent two days. This sharp rise followed a period of modest gains, where the app had moved from rank 98 to 58 over the prior 30 days.

The catalyst was a magnitude 5.6 earthquake in Mendocino County on the morning of June 24. The app's performance during this event directly drove its rapid ascent on the charts, placing it ahead of many for-profit weather applications.

The primary cause for the ranking surge was the app's successful deployment during the earthquake. Powered by the USGS ShakeAlert system, MyShake delivered notifications that gave many users critical seconds of warning before the tremor was felt.^[2] This performance was immediately validated by an official statement from California Governor Gavin Newsom's office, which confirmed the alert's reach.

The statement included a direct call to action: "I encourage all Californians to download the MyShake app." This high-profile endorsement, amplified by media coverage, directly caused the download spike.^[3] No recent app updates contributed; the last update was over five months prior.

As a free public safety tool from the University of California, Berkeley, MyShake generates no revenue. Its value is measured in adoption and utility. The June 24 earthquake caused daily downloads to explode from an average of a few hundred to nearly 11,300, a more than 1,700% increase in a single day. Weekly downloads for the period starting June 22 surpassed 12,400, more than doubling the previous week's volume. This demonstrates how a crisis can drive adoption for a non-commercial utility far more effectively than any marketing budget.

Developed by UC Berkeley with the California Governor's Office of Emergency Services (Cal OES), MyShake is the official early warning app for California, Oregon, and Washington. Its surge highlights a unique market dynamic where a government-backed utility can dominate commercial app charts during a crisis. Its success is built on public trust and official validation, not on paid user acquisition, setting it apart from typical chart-topping apps that rely on advertising and monetization features.

User reception for MyShake is polarized. Many praise its core function, with one user noting after the June 24 event, "I just exp the 2nd time this app notified me about an earthquake. Last time I got a Notification just seconds before the earthquake!" However, a recurring complaint is the frequency of alerts for distant, unfelt quakes. One 2-star review from June 26 states the app "Practically gives me a heart attack several times a year over moderate quakes so far away I can’t feel them." This tension reflects the challenge of balancing warning sensitivity with user anxiety, a key issue for developers.

The MyShake app's ranking will likely fall from its peak as attention on the earthquake subsides. However, the event has established a new, higher baseline of public awareness and trust, which may keep its rank elevated for months. The core challenge remains refining the alert system to reduce false positives for non-threatening tremors, a friction point clear in user feedback.

Future seismic events will almost certainly trigger similar adoption spikes. The app's proven value during this crisis suggests that investment in such public-facing early warning systems is a sound strategy for government agencies seeking to use technology for public safety.