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Charlotte Amalie, United States Virgin Islands

18.3369, -64.9622  ·  updated 11 Sep 2026, 04:42 UTC  ·  composite signal 55.4/100
55.4Composite /100
LOWTsunami Risk
28Air Quality
199kmNearest Volcano
0Wildfire Hotspots
7.0UV Index
2.0Kp Index
40Quakes 7d
Seismic activity map for Charlotte Amalie, United States Virgin Islands

7-day weather outlook — conditions across the region

7-day weather forecast map for Charlotte Amalie, United States Virgin Islands

7-day forecast — temperature, precipitation & wind

7-day wind & rain chance

Global baseline

Signal — Current Conditions

29.0°C

Partly cloudy · feels 32.4°C · humidity 80%

Signal — Wind

24.4 km/h

Gusts to 32.8 km/h · direction 101°

Signal — Pressure & Sun

1016 hPa

Sunrise 06:06 · Sunset 18:25

Signal — Sky & Visibility

58% cloud

Visibility 21.1 km · dew point 25.3°C

Signal — Earthquake

80.7 / 100

911 events considered (30yr, 300km radius)

Nearest M5.5+: 74 km NE of Cruz Bay, U.S. Virgin Islands (85.7 km, M5.7)

Signal — Flood / Terrain

30 / 100

Elevation 16 m · slope 3.4°

Signal — Economic Impact

$1,516 / yr expected

Based on country average estimate property value ($194,400)

Signal — Wildfire (24h)

0 hotspots

None detected within ~55km

Signal — Air Quality

28 AQI

Dominant pollutant: pm10 · St De Baie Mahault, Guadeloupe, France

Signal — UV Index

7.0 (High)

Today's peak UV, Open-Meteo

Signal — Tsunami Risk

LOW

Based on largest nearby earthquake magnitude (30yr history)

Signal — Nearest Volcano

199 km

Saba (Stratovolcano) · last erupted 1640

1,718 people live within 10km of Saba · 136,185 within 100km
Tectonic setting: Subduction zone / Oceanic crust (< 15 km)

Saba, the northernmost active volcano of the West Indies, is a 5-km-diameter island forming the upper half of a large stratovolcano that rises 1,500 m above the sea floor. Its eruptive history is characterized by the emplacement of lava domes and associated pyroclastic flows. The summit, known as Mount Scenery (or The Mountain), is a Holocene lava dome that overtops a major collapse scarp that fo…

Full Smithsonian GVP profile →

Nearest other major location: Road Town, British Virgin Islands (37 km)

Next 24 hours — hourly detail

Next 24 hours — pressure & humidity

Seismic activity analysis (30-day, 500km)

30-Day Event Count

203

6.77/day · Above normal activity (z=43.6)

Last 7 Days

40 events

20% of this month's activity happened this week

Largest Event

M4.13

Avg M2.8 · min M1.64 · σ 0.57

Energy Released

260 t TNT

Cumulative seismic energy, 30 days (Gutenberg-Richter)

Depth Profile

28.8 km avg

17.2% shallow (<10km) · range 3.1–143 km

Underwriting Signal

100/100

Recommended tier: Premium

95% Confidence Range

175.1–230.9

Statistically expected event count for this window

Projected: 2469.8 events/yr · 2.4% chance of M5+ within 1 year · 1.2% chance of M6+ within 5 years · 0.2% chance of M7+ within 10 years

Same statistical model as your Risk Evidence Report (USGS FDSN, 30-day/500km window)

Recent significant earthquakes (30yr, 300km)
M6.4 — 4 km SSE of Indios, Puerto Rico 200 km, 6 km deep
M6.4 — 61 km N of Hatillo, Puerto Rico 210 km, 20 km deep
M6.1 — 91 km N of Charlotte Amalie, U.S. Virgin Islands 93 km, 23 km deep
M6 — 67 km NNW of San Antonio, Puerto Rico 257 km, 10 km deep
M6 — 112 km N of Charlotte Amalie, U.S. Virgin Islands 113 km, 33 km deep
M5.9 — 5 km SE of Maria Antonia, Puerto Rico 204 km, 5 km deep

USGS FDSN

Space weather (planetary signal)

Signal — Solar Wind

427 km/s (Slightly elevated)

Magnetic field: 4.3 nT (Quiet)

Signal — Geomagnetic (Kp)

2.0 / 9

Quiet — planetary K-index

Signal — Solar Flare

B3.7

Current GOES X-ray flux class

Solar wind speed and magnetic field strength indicate current space weather activity. Elevated or storm-level readings can disrupt satellites, GPS accuracy, and power grids. This is a planetary-scale signal, not specific to this location — typical quiet conditions run under 400 km/s wind speed and under 5 nT magnetic field.

Source: NOAA SWPC (planetary signal, same for every location)

Sources: USGS (earthquakes), Open-Elevation (terrain), Open-Meteo (weather). Illustrative estimate, not a certified engineering or actuarial assessment.

No country-specific deep dive built yet for United States Virgin Islands. Global baseline data above still reflects real, live USGS and elevation data for this exact coordinate.

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