Province of Isernia

Natural hazards and seismic zone municipality by municipality, for home buyers.

According to ISPRA’s mosaic, 11.2% of the territory of the province of Isernia has high or very high landslide hazard (P3 and P4), with 8% of the residents. 4.1% of the territory of the province of Isernia is in the flood area of the medium-probability scenario (P2), with 3.3% of the residents. Among Italy’s 107 provinces it ranks 34th for landslide hazard P3-P4 and 72nd for flood area (P2).

Municipalities by seismic zone: 32 in zone 1, 20 in zone 2.

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Municipalities by share of territory in landslide class P3/P4

Pizzone	41.3%
Castel San Vincenzo	37.7%
Rocchetta a Volturno	31.1%
Scapoli	24.9%
Cerro al Volturno	24.7%
Castelpizzuto	21.4%
Venafro	20.4%
Fornelli	17.9%
Belmonte del Sannio	17.6%
Pescopennataro	16.1%

Municipalities by share of territory in flood scenario P2

Sesto Campano	23.6%
Venafro	16.3%
Chiauci	8.9%
Cantalupo nel Sannio	8.6%
Pescolanciano	8.2%
Macchia d’Isernia	7.8%
Carpinone	6.7%
Poggio Sannita	6.5%
Belmonte del Sannio	6%
Carovilli	5.5%

All 52 municipalities

Municipality	Seismic zone	Landslide P3-P4	Flood P2
Acquaviva d’Isernia	1	13.4%	0%
Agnone	2	10.5%	4.3%
Bagnoli del Trigno	2	12.3%	4.3%
Belmonte del Sannio	2	17.6%	6%
Cantalupo nel Sannio	1	4.3%	8.6%
Capracotta	2	8.1%	2.6%
Carovilli	2	4.8%	5.5%
Carpinone	1	14.5%	6.7%
Castel del Giudice	2	16.1%	4.3%
Castel San Vincenzo	1	37.7%	0%
Castelpetroso	1	12.8%	2.3%
Castelpizzuto	1	21.4%	0%
Castelverrino	2	12.7%	4.9%
Cerro al Volturno	1	24.7%	0%
Chiauci	2	4.6%	8.9%
Civitanova del Sannio	2	10%	5.3%
Colli a Volturno	1	7.3%	1.2%
Conca Casale	2	7.7%	0%
Filignano	1	4%	0.1%
Forlì del Sannio	1	7.2%	0.6%
Fornelli	1	17.9%	4%
Frosolone	2	5.7%	2.9%
Isernia	1	11.5%	2%
Longano	1	7.6%	0%
Macchia d’Isernia	1	12.3%	7.8%
Macchiagodena	1	0.7%	5.5%
Miranda	1	11.2%	2.6%
Montaquila	1	4.1%	4.2%
Montenero Val Cocchiara	1	5%	1.5%
Monteroduni	1	6.5%	4.9%
Pesche	1	15.7%	0.7%
Pescolanciano	2	3.9%	8.2%
Pescopennataro	2	16.1%	2.2%
Pettoranello del Molise	1	6.4%	3.4%
Pietrabbondante	2	14.5%	5.5%
Pizzone	1	41.3%	0.1%
Poggio Sannita	2	14.8%	6.5%
Pozzilli	1	7.9%	4.3%
Rionero Sannitico	1	4.2%	0%
Roccamandolfi	1	5%	4.6%
Roccasicura	1	13.5%	0%
Rocchetta a Volturno	1	31.1%	0%
San Pietro Avellana	1	7.5%	4.2%
Sant’Agapito	1	5.7%	0.2%
Sant’Angelo del Pesco	2	9.8%	5.2%
Sant’Elena Sannita	1	5.4%	4.8%
Santa Maria del Molise	1	8.8%	4.1%
Scapoli	1	24.9%	0%
Sessano del Molise	2	11.7%	1.1%
Sesto Campano	2	15.2%	23.6%
Vastogirardi	2	3.1%	1.9%
Venafro	2	20.4%	16.3%

Landslides and floods in the province

ISPRA indicator	IS	Molise
Landslide, very high hazard (P4)	8.1%	5.1%
Landslide, high hazard (P3)	3.2%	10.9%
Landslide, areas of attention	16%	7.4%
Residents in landslide areas P3-P4	8%	5.9%
Buildings in landslide areas P3-P4	8.2%	7.3%
Flood, high probability (P3)	1.2%	2%
Flood, medium probability (P2)	4.1%	5.6%
Flood, low probability (P1)	4.4%	6.1%
Residents in P2 flood areas	3.3%	2.3%
Buildings in P2 flood areas	2.2%	2.1%

Sources: ISPRA IdroGEO, Civil Protection, Istat (25 October 2026).

Updated on 25 October 2026