# SeismoCloud > Crowdsourced earthquake detection and early warning system using smartphone sensors. (iPhone/iPad app by informatica@sapienza.) - Source: https://appshunter.io/ios/app/seismocloud/id922890238 (this page in markdown: same URL + `.md`) - Developer: [informatica@sapienza](https://appshunter.io/developer/394356478) - Category: Utilities, Education - Price: Free - Age rating: 4+ - Requires: iOS 11.0 · 49 MB - Languages: American English - Released: 2014-10-17 - Data updated: 2026-06-03 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/seismocloud/id922890238/reviews.md ## What is SeismoCloud? SeismoCloud is a crowdsourcing project whose aim is to detect earthquakes using smartphones and Internet-of-Things devices as seismometers. In the event of an earthquake, SeismoCloud sends an Early Warning, i.e. an immediate alert, via smartphone notification to the citizens of the provinces involved. - When your phone is on standby and resting on a table, it turns into an online seismometer. - Thousands of smartphones like yours will allow you to monitor the entire territory. - In the event of an earthquake, an immediate alert will be sent to those in areas where damage could occur. (We don't send alerts yet, we will when we reach a certain number of active apps) - The alert (it's a notification) travels faster than the seismic wave, so many will be able to receive it a few seconds or tens of seconds before they feel the earthquake. The location is needed to locate the vibrations on the map and thus detect potential earthquakes, but, to protect privacy, neither the name of the seismometer, the type of device, nor the precise location are shown on the map. SeismoCloud is a crowdsourcing project: everyone contributes by simply installing the app. The combination of all the small contributions is a great service for everyone. SeismoCloud is a scientific research project carried out by researchers of the University La Sapienza of Rome (Department of Informatics) and the Italian National Institute of Geophysics and Volcanology (Seismology and Tectonophysics Section). With everyone's contribution we are testing the system and we will be ready to send the alarms when we reach a certain number of active apps. Help us to spread the app among your acquaintances. HOW IT WORKS The app, when the phone or tablet is not in use and is resting on a horizontal surface, uses the internal sensor of the smartphone (accelerometer) to detect vibrations in the surrounding environment, behaving like a real seismometer (i.e. a seismograph without paper and nib, which sends measurements to a central computer) and thus contributing to the detection of earthquakes. In fact, when many smartphones in the same area detect a vibration at the same time, an algorithm on the central computer compares the data received and makes an estimate of the distance within which the earthquake may pose a danger to the population. In case of danger in the province where we are (for example, the province where we live or the province of the place where we are on vacation, etc.), we will be sent a notification that warns us of the earthquake in progress. The notification is sent a few seconds after the tremor begins at the epicenter, and therefore can reach us before the seismic wave (because it travels more quickly). The application has been developed in such a way as to minimize power and bandwidth consumption, while still ensuring constant detection throughout the day. Visit www.seismocloud.com to learn more. ## Key features - Smartphone seismometer - Early earthquake alerts - Crowdsourced data collection - Vibration detection - Privacy protection - Low power consumption ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/seismocloud/id922890238/reviews.md ### 3/5 — Carina ma poco utile *2019-09-25, version v2.4* Rispetto ad altre app simili , l’idea di sfruttare il proprio dispositivo per il rilevamento del sisma è carina; Trovo un po’ smodo il fatto di doverlo lasciate acceso (implica il fatto che io debba tenere il cellulare acceso e che mi ricordi il fatto di riaprilo se lo spengo). I segnaposto hanno dei colori poco “evocativi” e la nomenclatura “sismografo” che immagino siamo i vari telefono è forviante. Cambiare almeno i colori aiuterebbe! Non capisco se i dati dai telefoni sono attendibili, perché se abito su una stazione metro a Roma ogni 5’ vibra il terreno (in alcune zone). Forse più che sisma potrebbe misurare le sollecitazioni utili per i calcoli di alcune strutture anche architettoniche. ### 1/5 — Non va *2019-04-29, version v2.3* Ad apertura app non succede niente cliccando su avanti. ### 1/5 — Ripetuti crash *2018-03-10, version 2.1* La versione iOS è carente e collassa, un vero peccato ### 1/5 — Incompleta *2016-10-31, version 2.1* Idea interessante, usa una rete di iPhone per rilevare vibrazioni e ti rimanda un allarme. Ma se volessi che quando rileva vibrazioni mi avvisi istantaneamente?? Non si può fare. È così, anche con un grado 5, se va via la rete non mi suona! Se non sono sotto copertura non mi avvisa!! Potrebbe salvare la vita invece diventa pericoloso. ### 1/5 — Pessima applicazione *2015-06-23, version 1.1* Va in continuo crash e non fa quello che realmente deve fare. A mio parere questa applicazione è totalmente inutile. Invece di scaricare tale applicazione indirizzatevi verso applicazioni fatte per bene. Spero che possiate risolvere al più presto. ### 5/5 — Veramente utile *2015-06-23, version 1.1* Non date retta a bruno altiero,è un tossico che si droga a Ledro,ripeto utile e vantaggiosa ## Frequently asked questions about SeismoCloud ### How does SeismoCloud detect earthquakes? SeismoCloud uses your smartphone's accelerometer to detect vibrations when the phone is idle and on a horizontal surface. When many phones in an area detect simultaneous vibrations, an algorithm analyzes the data to estimate potential earthquake danger. ### When will SeismoCloud send earthquake alerts? The app is designed to send early warning alerts, but currently, these alerts are not active. They will be enabled once a sufficient number of active apps are contributing data to the network. ### Does SeismoCloud protect my privacy? Yes, SeismoCloud prioritizes privacy. While location is needed to map vibrations, the app does not display the seismometer's name, device type, or precise location on the map. ### What devices is SeismoCloud compatible with? SeismoCloud is available for iPhone, iPad, and iPod devices. It is designed to minimize power and bandwidth consumption for continuous detection. ### How often is SeismoCloud updated? The latest version is v4.0.3, last updated on January 28, 2023. The developers are actively working on the project, which is a scientific research initiative. ### Is SeismoCloud free to use? Yes, SeismoCloud is completely free to download and use. It is a crowdsourcing project where user contributions are essential for its functionality. ### What is the age rating for SeismoCloud? SeismoCloud has an age rating of 4+. This indicates it is suitable for a wide range of users, including children, for educational and awareness purposes. ### Who developed SeismoCloud? SeismoCloud is a scientific research project developed by researchers from the University La Sapienza of Rome and the Italian National Institute of Geophysics and Volcanology. ## Version history (last 5 releases) ### v4.0.3 — 2023-01-28 Bug fix ### v4.0.2 — 2022-03-06 We have fixed some bugs ### v4.0.1 — 2021-12-08 We have completely rewritten the app, adding some missing features! ### v4.0.0 — 2021-11-20 We have completely rewritten the app, adding some missing features! ### v2.5.0 — 2021-01-20 Abbiamo sistemato qualche problemino con il tema scuro, e abbiamo aggiunto l'opzione per autenticarsi ## Apps similar to SeismoCloud | App | Rating | Price | Category | | --- | --- | --- | --- | | [wifi.italia.it](https://appshunter.io/ios/app/wifiitaliait/id1242869627) | 1.2 (6) | Free | Utilities | | [D-Alert](https://appshunter.io/ios/app/d-alert/id6478954548) | — | Free | Utilities | | [Noise Calc](https://appshunter.io/ios/app/noise-calc/id1556882174) | 1.0 (1) | Free | Utilities | | [CombiView](https://appshunter.io/ios/app/combiview/id6446202518) | — | Free | Utilities | | [NotiSafe m2r](https://appshunter.io/ios/app/notisafe-m2r/id6503445758) | — | Free | Utilities | | [View Stromboli](https://appshunter.io/ios/app/view-stromboli/id1551670158) | — | Free | Utilities | ## More apps by informatica@sapienza - [La Dolce Sfida](https://appshunter.io/ios/app/la-dolce-sfida/id6752023378) All apps by informatica@sapienza: https://appshunter.io/developer/394356478 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-03.*