Table 3 Conversion of factor classes or categories to weights (weights encoding) of input factors for LSM for Quito. Source: MDMQ, INEC, adapted by authors

1geo

Slope (degrees):

• 0° - 10°

• 10.1° - 25°

• 25.1° - 35°

• > 50°

• 35.1° - 50°

2cov

Lithology (categories):

• Cotopaxi Lahars: steep ledges and slopes. Slopes and canyons or deep throats of ravines and rivers

• Pululahua Domes: fractured dacites from the volcano, but they appear compact and with resistant weathering

• Quito Lake Deposits

• Colluvial Mass Movements

• Colluvial Conglomerates

• Colluvials

• Casitagua Volcanics

• Undifferenced Volcanic Lahars

• Pichincha Volcanics

• Cangahua formations: compacted ashes, pyroclastic, lava

• Cangahua formations: undifferenced ashes-lapillistone with destroyed surfaces, strongly bisected in hills with rounded tips

• Alluvial terraces

• Pululahua pyroclastic flows

• Guayllabamba, San Miguel and Pisque Formations: sequences of volcanic sands, pyroclastic flows, silts, lahars; at the base: fluvial-lake sequence, occasionally very crumbly

3sei

Land Use / Vegetation Cover (categories):

• North Andes mountain bushes

• Always-green North Andean high-mountain forests

• Mountain pasture

• High-mountain and mountain-moor grassland

• Reservoirs

• Inter-Andean dry bushes

• Inter-Andean dry forest

• Eucalyptus forests

• River vegetation from xerophytic mountain floor

• Inter-Andean mountain Saxicola Vegetation

• Airport

• Short-cycle crops

• Cropped grass

• Natural grass

• Quarries

• Buildings

• Eroded soils

4pre

Soil Stability (categories):

• Stabilized

• Latent

• Reactivated

• Colluvial

• Active

5sta

Intense Precipitations in 24 h (stations types: a. maximum (mm) / n > 10 Rt = 100 years, b. Average rain (mm) / n < 10 years):

• < 75.4 (a)

• < 50 (b)

• 76.4–91.88 (a)

• 51–90 (b)

• 91.88–107.34 (a)

• 91–130 (b)

• 107.34–122.79 (a)

• 137–175 (b)

6slo

Seismic Intensity (European Macro-seismic Scale, ordinal):

Not applicable

• EMS VII

• EMS VIII

Not applicable

7pop

Population (Inhabitants):

• 0–1.81

• 1.82–5.56

• 5.57–12.47

• 12.48–31.86

8roa

Road Density (m/Ha):

• 0–7.50

• 7.51–18.16

• 18.17–31.99

• 32–100.70

9bui

Floor Area (m²):

• 0–4,180.33

• 4,180.34–35,950.76

• 35,950.77 – 104,508.01

• 104,508.02–213,196.34

10gro

Building Footprint Area (m²):

• 0–3,344.26

• 3,344.27–34,278.63

• 34,278.64 – 104,508.01

• 104,508.02–213,196.34