●Monitor
SEIS layer · seismic
/monitorWhat it answers
Every earthquake of the past seven days placed on the map: epicenter, magnitude, depth, recency. Readable at a glance.
When to open it
- When the yen moves with no obvious headline: a major quake on the Japanese arc gets priced before the Western press picks it up.
- To place a Disaster headline: exact epicenter, depth, proximity to industrial centers (cross-check with Finance in the reference layers) or to nuclear sites.
- To test a narrative about an "exceptional seismic wave" against the TDI's Seismic stream: whether the day genuinely stands out or stays inside its baseline.
Anatomy
Switch on SEIS in the layer grid at top right. Each epicenter shows up as a beacon: a solid dot at the center, concentric sonar rings pulsing around it, and the magnitude in white figures inside the dot. Dot size and ring spread are in real meters — zoom in and the beacon grows on screen.
Click one and an info card opens in the top-right corner.
How to read it
The beacon on the map
| Element | How to read it |
|---|---|
| Dot and ring color | red = MAJOR (M ≥ 7), orange = STRONG (M ≥ 6), amber = MODERATE (M ≥ 5), slate = LIGHT (M < 5). The color fades for deep quakes — a very deep event stands out less than the same magnitude near the surface. |
| Figures in the center | Magnitude to one decimal. |
| Concentric rings | Pulsing animation (≈ 6 s). The ring radius carries the order of magnitude of the felt radius — an M7 covers far more ground than an M5. |
The info card (click an epicenter)
| Block | How to read it |
|---|---|
| Header | MAJOR / STRONG / MODERATE / LIGHT at top left, magnitude M{x.x} large on the right. |
| Location | The USGS place name (Off the east coast of Honshu, Japan…). |
| DEPTH | Depth in km, followed by a class badge: SHALLOW (< 30 km), INTERMEDIATE (< 70 km), DEEP (< 300 km), VERY DEEP. |
| Coords | Latitude / longitude to three decimals. |
| Timestamp | Full UTC time plus a relative one (Just now, Nm ago, Nh ago, Nd ago). |
| USGS | The event's USGS identifier. Clicking the card opens the relevant Intel page in a new tab. |
Controls
| Gesture | Effect |
|---|---|
| SEIS toggle in the grid at top right | Turns the layer on or off. |
| Click an epicenter | Opens the info card. With Fly on, the camera recenters on it. |
| Click empty space or Esc | Closes the card. |
| Click the info card | Opens the matching Intel page in a new tab. |
The layer reloads automatically every 5 minutes (the USGS cadence).
Cross-check with other Hawkline features
- A day heavy in MAJOR / STRONG: TDI, Seismic stream — confirm whether the tape is off baseline or still within range.
- An epicenter in an exporting region (Chile, Peru, Australia): cross-check with TRADE and the ports to get ahead of supply-chain breaks.
- An active ZONE nearby: the event can add to a signal count that is already loaded.
Keep in mind
- No tsunami warning, no damage estimate. Magnitude, depth, location — nothing else. The human severity of an event doesn't follow from an M number.
- Depth dims the color, not the magnitude shown. An M6 at 400 km comes out duller but is still an M6 — to read surface danger, go by the depth badge.