Surabaya, Indonesia
7-day weather outlook — conditions across the region
7-day forecast — temperature, precipitation & wind
7-day wind & rain chance
Signal — Current Conditions
31.3°C
Partly cloudy · feels 33.3°C · humidity 50%
Signal — Wind
22.4 km/h
Gusts to 58.3 km/h · direction 105°
Signal — Pressure & Sun
1012 hPa
Sunrise 05:24 · Sunset 17:26
Signal — Sky & Visibility
20% cloud
Visibility 24.1 km · dew point 19.6°C
Signal — Earthquake
80.2 / 100
957 events considered (30yr, 300km radius)
Nearest M5.5+: 8 km WSW of Sumberpucung, Indonesia (111.5 km, M6.6)
Signal — Flood / Terrain
30 / 100
Elevation 8 m · slope 1.1°
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
57 AQI
Dominant pollutant: pm25 · Malang, Indonesia
Signal — UV Index
9.0 (Very High)
Today's peak UV, Open-Meteo
Signal — Tsunami Risk
MODERATE
Based on largest nearby earthquake magnitude (30yr history)
Signal — Nearest Volcano
43 km
Penanggungan (Stratovolcano) · no confirmed Holocene eruption
Tectonic setting: Subduction zone / Continental crust (> 25 km)
Gunung Penanggungan, one of Java's most revered mountains, is a small stratovolcano immediately north of the Arjuno-Welirang massif. Numerous ruins of sanctuaries, monuments, and sacred bathing places dating from 977-1511 CE are found on the northern and western flanks. Lava flows from flank vents descend to all sides and pyroclastic-flow deposits form an apron around it. It was mapped as similar …
Nearest other major location: Bandung, Indonesia (569 km)
Next 24 hours — hourly detail
Next 24 hours — pressure & humidity
30-Day Event Count
4
0.13/day · Below normal activity (z=-3.3)
Last 7 Days
1 events
25% of this month's activity happened this week
Largest Event
M5.2
Avg M4.7 · min M4.4 · σ 0.35
Energy Released
1,251 t TNT
Cumulative seismic energy, 30 days (Gutenberg-Richter)
Depth Profile
163.7 km avg
0.0% shallow (<10km) · range 10–492.2 km
Underwriting Signal
41.7/100
Recommended tier: Basic
95% Confidence Range
0.1–7.9
Statistically expected event count for this window
Projected: 48.7 events/yr · 0.0% chance of M5+ within 1 year · 0.0% chance of M6+ within 5 years · 0.0% chance of M7+ within 10 years
Same statistical model as your Risk Evidence Report (USGS FDSN, 30-day/500km window)
USGS FDSN
Signal — Solar Wind
411 km/s (Slightly elevated)
Magnetic field: 5.4 nT (Unsettled)
Signal — Geomagnetic (Kp)
2.0 / 9
Quiet — planetary K-index
Signal — Solar Flare
B5.6
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.
Global Disaster Alert and Coordination System (GDACS)
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