
Hawaii Quake & Volcano Guide
Big Island USGS/Cam/Alert/Maps
About
Monitor real-time seismic and volcanic activity on Hawaii Island. Visualize subsurface data with 3D views, track live camera feeds, and receive custom alerts for changing conditions. Ideal for residents, researchers, and visitors interested in Hawaiian geology.
What's New in Hawaii Quake & Volcano Guide
1.0.7
May 25, 2026
Most important * 3D Hypocenter Cloud can work with many more earthquakes simultaneously (Mac) * Fixed freeze/beachball where the scene stopped rotating and the Map tab would hang * Drag up now tilts the island toward you (Mac Y-axis was inverted) * Orbit no longer accumulates weird roll - rotation stays predictable * Reset View button on the bottom panel (expanded and collapsed) returns to the opening camera angle * Much faster on M5 chips and Apple Silicon in general with large datasets: smarter clustering, background scene rebuild, hover/tooltip only on the quake under the cursor Load larger historical earthquake files * Help > Download & Load for Plum Amazing’s HistoricalQuakes.json (~8 MB) from your CDN; cached locally after first download * Load from File shows real progress (reading MB > parsing > done), validates file type upfront, and disables controls while loading * Loaded files no longer get silently replaced when you tap 24h / 7d / 30d * All button shows every quake in a loaded file * Time filters for loaded files anchor to the file’s newest event (not “right now”) * Pill/menu shows the real filename (e.g. HistoricalQuakes.json) Map & simulations stay responsive with thousands of quakes * Fixed Map tab beachballing with large imports * Map caps at 1,000 annotations (highest-magnitude events kept) * 3D Cloud, Exaggerated Depth, and Cross-Section use adaptive clustering so dense feeds stay interactive Clearer Live vs Historic data * Data-source menu split into Live USGS Feeds and Historic (bundled, since 1900) * Notable relabeled to Notable (live, last 30 days) for clarity * Live/Historic badge and labels reflect what is actually on screen Lifetime purchase option (iOS & Mac App Store) * Paywall adds Lifetime Access ($14.99) alongside Daily and Monthly * Layout updated to fit the lifetime option * Buttons sized to match StoreKit controls Mac window remembers size and position * Restore window size and location after quit/relaunch Also worth mentioning * Cross-Section improvements * Less clutter with large historical files: finer binning, small clusters render as individual dots * Help explains slice thickness, xN cluster badges, and why vertical columns can be a grid artifact versus real geology 3D Cloud scope clarified * Documented: 3D Cloud simulation currently shows Hawaii (textured Big Island) even when Region is Worldwide. Map and List still respect region. This app is mainly about Hawaii but can display events worldwide Help & Guide expanded * New sections: switching data sources, loaded-file behavior, cross-section slices, 3D Hawaii scope * Historical Data card lists bundled datasets with availability checkmarks Paywall polish * Headline updated to “3 Options, Daily, Monthly or Lifetime” * Policy divider moved; Restore button styling aligned with lifetime button color Under the hood (mostly invisible) * New QuakeDecimation engine shared across 3D, Depth, and Cross-Sectio) * 3D scene builds on a background thread, then swaps atomically (smoother with 12k+ events) * Mac window persistence uses AppKit autosave plus explicit UserDefaults backup Latest Changes * 3D Cloud map floor from MapKit snapshot, aligned with the 2D Big Island map * Depth rods linking epicenter spheres to hypocenter cubes (toggle in panel) * Epicenter spheres + hypocenter cubes with shaded faces * Transparent ocean so rods aren’t blocked by a dark surface sheet * Fixed north–south mirroring of quake positions vs the 2D map * Unified quake dot sizes (Teeny→Large) across Map, 3D, Cross-Section, Spinning Island * 3D panel depth rods on same row as dot-size picker (saves height) * 3D min magnitude filter matches the 2D map * Mac hover callout: Epicenter / Hypocenter, time, magnitude, depth * App Store three-plan paywall (Monthly, Yearly, Lifetime) on iOS + Mac * Lifetime IAP visible on iOS; shared checkout on Mac target * App version update checker for Apple App Store notifies user of new versions.
MoreSubscription plans
Billed Monthly
Unlimited access to all features.
In-App Purchases
$9.99
Lifetime Access
Lifetime Access to Earthquake Hawaii App
Developer apps
FAQ
What volcanoes does Hawaii Quake & Volcano Guide focus on?
Hawaii Quake & Volcano Guide focuses on Hawaii Island’s active volcanoes: Kilauea, Mauna Loa, and Hualalai, as well as the dormant Mauna Kea and the potential new island Kamaehuakanaloa (Loihi).
Does Hawaii Quake & Volcano Guide have ads?
No, Hawaii Quake & Volcano Guide is ad-free, allowing for an uninterrupted user experience.
What kind of data can I see in Hawaii Quake & Volcano Guide?
You can track live seismic activity with USGS-based data, including magnitude, depth, and location. It also provides live HVO cams and Kilauea tilt data for eruption context.
How does Hawaii Quake & Volcano Guide visualize subsurface activity?
It offers three ways to explore the subsurface: a Cross-Section View, a Spinning Island View for 360-degree rotation, and an interactive 3D Point Cloud View of earthquake activity.
Can I set up custom alerts with Hawaii Quake & Volcano Guide?
Yes, you can set up a variety of free notifications for swarm activity, tilt, lava flows, fountains, magnitude, depth, and proximity to stay informed about changing seismic and volcanic conditions.
What is the update frequency for Hawaii Quake & Volcano Guide?
The app was last updated on May 25, 2026, indicating active development and maintenance. Its real-time data feeds ensure up-to-date information.
What are the subscription options for Hawaii Quake & Volcano Guide?
Hawaii Quake & Volcano Guide offers a monthly subscription for $0.99 or a yearly plan at a discounted rate of $4.99, which is 56% off the monthly price.
What devices support Hawaii Quake & Volcano Guide?
Hawaii Quake & Volcano Guide is available for iPhone and iPad, making it accessible to a wide range of Apple users.












