Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 09-08-2019 and time 21:57:30 (Italy) in region 1 km SE Forlì del Sannio (IS)

A magnitude ML 1.1 earthquake occured in region: 1 km SE Forlì del Sannio (IS), on

  • 09-08-2019 19:57:30 (UTC)
  • 09-08-2019 21:57:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6900, 14.1910 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Forlì del Sannio IS 1 675 675
Roccasicura IS 4 550 1225
Acquaviva d'Isernia IS 4 425 1650
Rionero Sannitico IS 5 1118 2768
Miranda IS 7 1047 3815
Cerro al Volturno IS 8 1281 5096
Carovilli IS 9 1359 6455
Fornelli IS 10 1909 8364
Montenero Val Cocchiara IS 11 538 8902
Vastogirardi IS 11 704 9606
San Pietro Avellana IS 11 503 10109
Castel San Vincenzo IS 11 516 10625
Rocchetta a Volturno IS 11 1113 11738
Pesche IS 12 1661 13399
Isernia IS 12 21842 35241
Pescolanciano IS 12 855 36096
Colli a Volturno IS 12 1349 37445
Castel di Sangro AQ 13 6538 43983
Sessano del Molise IS 13 727 44710
Pizzone IS 13 329 45039
Scapoli IS 14 680 45719
Alfedena AQ 14 864 46583
Scontrone AQ 14 574 47157
Macchia d'Isernia IS 14 1035 48192
Pettoranello del Molise IS 15 460 48652
Montaquila IS 15 2456 51108
Carpinone IS 16 1157 52265
Chiauci IS 16 233 52498
Sant'Agapito IS 16 1496 53994
Capracotta IS 17 903 54897
Pietrabbondante IS 18 759 55656
Civitanova del Sannio IS 18 945 56601
Barrea AQ 18 726 57327
Ateleta AQ 18 1181 58508
Monteroduni IS 19 2264 60772
Castel del Giudice IS 19 346 61118
Longano IS 19 690 61808
Castelpetroso IS 19 1680 63488
Castelverrino IS 19 115 63603
Filignano IS 20 648 64251
Agnone IS 20 5139 69390
Roccaraso AQ 20 1627 71017

Municipalities with at least 50000 inhabitants

An earthquake occurred to
69 Km N of Caserta (76326 inhabitants)
74 Km S of Chieti (51815 inhabitants)
79 Km NW of Benevento (60091 inhabitants)
80 Km N of Aversa (53047 inhabitants)
84 Km N of Acerra (59573 inhabitants)
85 Km N of Giugliano in Campania (122974 inhabitants)
86 Km N of Afragola (65057 inhabitants)
86 Km S of Pescara (121014 inhabitants)
88 Km N of Casoria (77642 inhabitants)
88 Km N of Marano di Napoli (59874 inhabitants)
92 Km S of Montesilvano (53738 inhabitants)
94 Km N of Pozzuoli (81661 inhabitants)
95 Km N of Napoli (974074 inhabitants)
97 Km N of Portici (55274 inhabitants)
99 Km SE of L'Aquila (69753 inhabitants)
99 Km N of Ercolano (53709 inhabitants)
99 Km W of San Severo (53905 inhabitants)
100 Km NW of Avellino (54857 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.1 2019-08-09
19:57:30		 41.6902 14.1913 11 2019-11-13
14:30:57		 Bollettino Sismico Italiano INGV 71417871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-09 19:57:30 ± 0.12
Latitude 41.6902 ± 0.0072
Longitude 14.1913 ± 0.0096
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 71417871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 850
Semi-minor axis of confidence ellipse (meter) 690
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 214
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38581
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 71417871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-12 13:17:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.FUORN.HHZ. 2019-08-09T19:58:53.79 3.0 negative manual Pg 13.04 0
IV.IMI.HHZ. 2019-08-09T19:58:43.86 3.0 undecidable manual Pn 3.68 0
IV.ZONE.HHZ. 2019-08-09T19:58:42.98 3.0 negative manual Pg 9.64 0
IV.SPS2.HHZ. 2019-08-09T19:58:41.29 3.0 undecidable manual Sg 8.46 0
IV.PIPA.HHZ. 2019-08-09T19:58:27.16 3.0 undecidable manual Sn -3.74 0
IV.SNTG.HHZ. 2019-08-09T19:58:21.82 3.0 undecidable manual Sg 1.31 0
IV.NDIM.HHZ. 2019-08-09T19:58:12.31 3.0 positive manual Pn -7.44 0
IV.MMO1.EHZ. 2019-08-09T19:58:10.04 3.0 undecidable manual Sg -0.11 0
IV.PZUN.HHZ. 2019-08-09T19:58:00.66 3.0 undecidable manual Sg 2.21 0
IV.VCEL.EHZ. 2019-08-09T19:57:56.13 3.0 undecidable manual Sg -0.69 0
IV.PE3.EHZ. 2019-08-09T19:57:48.91 3.0 positive manual Pn -8.36 0
IV.INTR.HHE. 2019-08-09T19:57:43.90 1.0 undecidable manual S 326 42.8238 50 -0.31 23
IV.POFI.HNE. 2019-08-09T19:57:43.50 0.6 undecidable manual S 275 39.8268 50 0.09 48
IV.VAGA.HHZ. 2019-08-09T19:57:41.13 1.0 undecidable manual S 173 30.6471 50 0.16 24
IV.INTR.HHE. 2019-08-09T19:57:38.06 0.3 undecidable manual P 326 42.8238 50 -0.26 68
IV.POFI.HNE. 2019-08-09T19:57:37.92 0.6 undecidable manual P 275 39.8268 50 0.06 48
IV.CERA.HHZ. 2019-08-09T19:57:37.30 0.3 undecidable manual S 235 17.6712 122 -0.19 73
IV.VAGA.HHZ. 2019-08-09T19:57:36.50 1.0 undecidable manual P 173 30.6471 50 0.04 24
IV.MNTT.EHZ. 2019-08-09T19:57:36.62 3.0 positive manual P -6.63 0
IV.CERA.HHZ. 2019-08-09T19:57:34.48 0.1 negative manual P 235 17.6712 122 0.03 100
IV.MIDA.HHZ. 2019-08-09T19:57:34.40 0.3 undecidable manual S 136 7.4814 146 -0.48 69
IV.RNI2.HHZ. 2019-08-09T19:57:34.30 0.3 undecidable manual S 294 3.4965 162 0.03 77
IV.MIDA.HHZ. 2019-08-09T19:57:33.24 0.1 negative manual P 136 7.4814 146 0.3 96
IV.RNI2.HHZ. 2019-08-09T19:57:32.82 0.1 negative manual P 294 3.4965 162 0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RNI2.HNN. ML:1.4 0.000382 0.18 AML other m 2019-08-09T19:57:34.63
IV.RNI2.HHN. ML:1.4 0.000404 0.18 AML other m 2019-08-09T19:57:34.63
IV.RNI2.HNE. ML:1.1 0.000194 0.34 AML other m 2019-08-09T19:57:34.86
IV.RNI2.HHE. ML:1.1 0.0001985 0.34 AML other m 2019-08-09T19:57:34.86
IV.MIDA.HHN. ML:0.7 0.000064 0.84 AML other m 2019-08-09T19:57:35.14
IV.MIDA.HHE. ML:0.7 0.0000627 0.18 AML other m 2019-08-09T19:57:36.31
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download