Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 11-08-2019 and time 23:02:58 (Italy) in region 2 km W Forlì del Sannio (IS)

A magnitude ML 1.0 earthquake occured in region: 2 km W Forlì del Sannio (IS), on

  • 11-08-2019 21:02:58 (UTC)
  • 11-08-2019 23:02:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6950, 14.1630 at 10 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.

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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 2 675 675
Rionero Sannitico IS 3 1118 1793
Acquaviva d'Isernia IS 3 425 2218
Roccasicura IS 6 550 2768
Cerro al Volturno IS 7 1281 4049
Montenero Val Cocchiara IS 8 538 4587
Miranda IS 9 1047 5634
Castel San Vincenzo IS 9 516 6150
Fornelli IS 10 1909 8059
Rocchetta a Volturno IS 10 1113 9172
San Pietro Avellana IS 11 503 9675
Pizzone IS 11 329 10004
Castel di Sangro AQ 11 6538 16542
Carovilli IS 11 1359 17901
Alfedena AQ 12 864 18765
Colli a Volturno IS 12 1349 20114
Scontrone AQ 12 574 20688
Vastogirardi IS 12 704 21392
Scapoli IS 12 680 22072
Isernia IS 13 21842 43914
Pesche IS 14 1661 45575
Pescolanciano IS 15 855 46430
Macchia d'Isernia IS 15 1035 47465
Montaquila IS 15 2456 49921
Sessano del Molise IS 15 727 50648
Barrea AQ 16 726 51374
Pettoranello del Molise IS 17 460 51834
Sant'Agapito IS 18 1496 53330
Carpinone IS 18 1157 54487
Capracotta IS 18 903 55390
Ateleta AQ 18 1181 56571
Roccaraso AQ 18 1627 58198
Chiauci IS 19 233 58431
Filignano IS 19 648 59079
Castel del Giudice IS 19 346 59425
Monteroduni IS 19 2264 61689
Pietrabbondante IS 20 759 62448

Municipalities with at least 50000 inhabitants

An earthquake occurred to
70 Km N of Caserta (76326 inhabitants)
73 Km S of Chieti (51815 inhabitants)
80 Km N of Aversa (53047 inhabitants)
81 Km NW of Benevento (60091 inhabitants)
85 Km N of Acerra (59573 inhabitants)
85 Km N of Giugliano in Campania (122974 inhabitants)
86 Km S of Pescara (121014 inhabitants)
87 Km N of Afragola (65057 inhabitants)
88 Km N of Casoria (77642 inhabitants)
89 Km N of Marano di Napoli (59874 inhabitants)
91 Km S of Montesilvano (53738 inhabitants)
94 Km N of Pozzuoli (81661 inhabitants)
95 Km N of Napoli (974074 inhabitants)
97 Km SE of L'Aquila (69753 inhabitants)
98 Km N of Portici (55274 inhabitants)
100 Km N of Ercolano (53709 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 1.0 2019-08-11
21:02:58		 41.6952 14.163 11 2019-11-13
14:30:58		 Bollettino Sismico Italiano INGV 71620481
Reviewed
Rev100 		ML 1.0 2019-08-11
21:02:58		 41.695 14.1642 11 2019-08-11
21:13:29		 Sala Sismica INGV-Roma 71393401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-11 21:02:58 ± 0.05
Latitude 41.6952 ± 0.0036
Longitude 14.1630 ± 0.0036
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 71620481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 362
Semi-minor axis of confidence ellipse (meter) 292
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 193
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.01169
Epicentral distance of station farthest from the epicenter (degree) 0.43887
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 71620481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-19 08:22:58

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 71393401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-11 21:13:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVLD.HHZ. 2019-08-11T21:03:14.47 0.3 undecidable manual S 294 48.7179 50 -0.03 70
IV.LRP.EHN. 2019-08-11T21:03:14.16 0.3 undecidable manual S 264 48.0186 50 -0.18 68
IT.SULP.HGN. 2019-08-11T21:03:14.45 0.6 undecidable manual S 336 47.4192 50 0.28 45
IV.INTR.HHZ. 2019-08-11T21:03:12.30 0.3 undecidable manual S 329 41.1255 50 -0.18 69
IV.LPEL.HHZ. 2019-08-11T21:03:12.17 0.3 undecidable manual S 2 39.0276 50 0.24 69
IV.BSSO.HHE. 2019-08-11T21:03:11.81 1.0 undecidable manual S 115 39.3273 50 -0.2 23
IV.POFI.HNE. 2019-08-11T21:03:11.92 0.3 undecidable manual S 274 37.4292 50 0.42 44
IV.TRIV.HHZ. 2019-08-11T21:03:10.62 0.6 undecidable manual S 76 33.0447 50 0.29 46
IV.VAGA.HHZ. 2019-08-11T21:03:09.90 0.3 undecidable manual S 169 31.5462 50 -0.04 72
IT.OPI.HGE. 2019-08-11T21:03:09.31 0.3 undecidable manual S 288 28.9488 50 0.06 73
IT.SULP.HGN. 2019-08-11T21:03:08.01 1.0 undecidable manual P 336 47.4192 50 0.28 22
IV.VVLD.HHZ. 2019-08-11T21:03:07.64 0.3 undecidable manual P 294 48.7179 50 -0.27 67
IV.LRP.EHN. 2019-08-11T21:03:07.66 0.3 undecidable manual P 264 48.0186 50 -0.17 69
IV.INTR.HHZ. 2019-08-11T21:03:06.42 0.1 negative manual P 329 41.1255 50 -0.32 90
IV.LPEL.HHZ. 2019-08-11T21:03:06.14 0.3 undecidable manual P 2 39.0276 50 -0.29 68
IV.POFI.HNE. 2019-08-11T21:03:06.11 0.1 undecidable manual P 274 37.4292 50 -0.07 95
IV.BSSO.HHE. 2019-08-11T21:03:06.65 0.1 undecidable manual P 115 39.3273 50 0.17 93
IT.OPI.HGE. 2019-08-11T21:03:05.07 1.0 undecidable manual P 288 28.9488 50 0.19 24
IV.VAGA.HHZ. 2019-08-11T21:03:05.39 0.1 negative manual P 169 31.5462 50 0.11 95
IV.TRIV.HHZ. 2019-08-11T21:03:05.61 0.1 undecidable manual P 76 33.0447 50 0.11 95
IV.CERA.HHZ. 2019-08-11T21:03:05.87 0.3 undecidable manual S 228 16.1727 123 0.28 71
IV.MIDA.HHZ. 2019-08-11T21:03:03.46 0.3 undecidable manual S 128 9.5793 137 -0.37 70
IV.CERA.HHZ. 2019-08-11T21:03:02.77 0.1 positive manual P 228 16.1727 123 0.01 100
IV.RNI2.HHZ. 2019-08-11T21:03:02.71 0.3 undecidable manual S 316 1.2987 173 0.14 75
IV.MIDA.HHZ. 2019-08-11T21:03:01.63 0.1 negative manual P 128 9.5793 137 -0.12 99
IV.RNI2.HHZ. 2019-08-11T21:03:01.16 0.1 negative manual P 316 1.2987 173 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HHN. ML:1.3 0.0002485 0.86 AML other m 2019-08-11T21:03:03.95
IV.MIDA.HHE. ML:1.2 0.00020150000000000002 0.2 AML other m 2019-08-11T21:03:04.69
IV.CERA.HHN. ML:0.8 0.0000557 1.52 AML other m 2019-08-11T21:03:09.13
IV.CERA.HHE. ML:0.8 0.000056800000000000005 1.18 AML other m 2019-08-11T21:03:09.40
IV.VAGA.HHN. ML:1.1 0.000058099999999999996 0.36 AML other m 2019-08-11T21:03:12.25
IV.VAGA.HHE. ML:0.7 0.0000247 1.18 AML other m 2019-08-11T21:03:12.70
IV.LPEL.HHN. ML:1.0 0.00003955 1.84 AML other m 2019-08-11T21:03:13.01
IV.INTR.HHN. ML:1.2 0.000048100000000000004 0.86 AML other m 2019-08-11T21:03:13.69
IV.LPEL.HHE. ML:1.2 0.00006080000000000001 0.96 AML other m 2019-08-11T21:03:13.63
IV.INTR.HHE. ML:0.8 0.0000189 0.12 AML other m 2019-08-11T21:03:13.71
IV.TRIV.HHE. ML:0.7 0.000018335 0.94 AML other m 2019-08-11T21:03:15.59
IV.TRIV.HHN. ML:0.8 0.00002435 0.54 AML other m 2019-08-11T21:03:23.59
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