Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 15-08-2019 and time 02:21:20 (UTC) in region 1 km W Forlì del Sannio (IS)

A magnitude ML 1.3 earthquake occured in region: 1 km W Forlì del Sannio (IS), on

  • 15-08-2019 02:21:20 (UTC)
  • 15-08-2019 04:21:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6990, 14.1700 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 1 675 675
Rionero Sannitico IS 3 1118 1793
Acquaviva d'Isernia IS 3 425 2218
Roccasicura IS 5 550 2768
Cerro al Volturno IS 7 1281 4049
Montenero Val Cocchiara IS 9 538 4587
Miranda IS 9 1047 5634
Castel San Vincenzo IS 10 516 6150
San Pietro Avellana IS 10 503 6653
Fornelli IS 10 1909 8562
Carovilli IS 11 1359 9921
Rocchetta a Volturno IS 11 1113 11034
Castel di Sangro AQ 11 6538 17572
Vastogirardi IS 11 704 18276
Pizzone IS 12 329 18605
Alfedena AQ 12 864 19469
Scontrone AQ 12 574 20043
Colli a Volturno IS 12 1349 21392
Scapoli IS 13 680 22072
Isernia IS 13 21842 43914
Pesche IS 14 1661 45575
Pescolanciano IS 14 855 46430
Macchia d'Isernia IS 15 1035 47465
Sessano del Molise IS 15 727 48192
Montaquila IS 15 2456 50648
Barrea AQ 16 726 51374
Pettoranello del Molise IS 17 460 51834
Capracotta IS 17 903 52737
Carpinone IS 18 1157 53894
Ateleta AQ 18 1181 55075
Sant'Agapito IS 18 1496 56571
Chiauci IS 18 233 56804
Roccaraso AQ 18 1627 58431
Castel del Giudice IS 18 346 58777
Pietrabbondante IS 19 759 59536
Filignano IS 19 648 60184
Monteroduni IS 20 2264 62448
Civitanova del Sannio IS 20 945 63393

Municipalities with at least 50000 inhabitants

An earthquake occurred to
71 Km N of Caserta (76326 inhabitants)
73 Km S of Chieti (51815 inhabitants)
81 Km N of Aversa (53047 inhabitants)
81 Km NW of Benevento (60091 inhabitants)
85 Km N of Acerra (59573 inhabitants)
85 Km S of Pescara (121014 inhabitants)
86 Km N of Giugliano in Campania (122974 inhabitants)
87 Km N of Afragola (65057 inhabitants)
89 Km N of Casoria (77642 inhabitants)
89 Km N of Marano di Napoli (59874 inhabitants)
91 Km S of Montesilvano (53738 inhabitants)
95 Km N of Pozzuoli (81661 inhabitants)
96 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 1.3 2019-08-15
02:21:20		 41.699 14.1695 10 2019-11-13
14:30:58		 Bollettino Sismico Italiano INGV 71644441
Reviewed
Rev100 		ML 1.5 2019-08-15
02:21:20		 41.6983 14.1747 11 2019-08-15
04:43:43		 Sala Sismica INGV-Roma 71500871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-15 02:21:20 ± 0.06
Latitude 41.6990 ± 0.0045
Longitude 14.1695 ± 0.0060
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 71644441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 519
Semi-minor axis of confidence ellipse (meter) 356
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 222
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
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 25
Number of defining phases 25
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) 0.01349
Epicentral distance of station farthest from the epicenter (degree) 0.44157
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 71644441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-07 09:42:32

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 71500871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-15 04:43:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVLD.HHZ. 2019-08-15T02:21:36.74 0.3 undecidable manual S 293 49.0176 50 0.29 66
IT.SULP.HGN. 2019-08-15T02:21:36.24 0.6 undecidable manual S 335 47.2194 50 0.25 45
IV.INTR.HHZ. 2019-08-15T02:21:34.33 0.6 undecidable manual S 328 41.0256 50 0.01 47
IV.POFI.HNE. 2019-08-15T02:21:33.66 0.6 undecidable manual S 273 37.9287 50 0.16 46
IV.MCI.EHE. 2019-08-15T02:21:33.34 0.6 undecidable manual S 232 37.5291 50 -0.05 47
IV.SGG.HHN. 2019-08-15T02:21:33.95 0.6 undecidable manual S 153 38.7279 50 0.22 46
IV.VAGA.HHZ. 2019-08-15T02:21:32.08 0.6 undecidable manual S 170 31.9458 50 0.18 46
IT.OPI.HGE. 2019-08-15T02:21:31.15 0.6 undecidable manual S 287 29.3484 50 -0.06 48
IT.SULP.HGN. 2019-08-15T02:21:29.30 0.3 undecidable manual P 335 47.2194 50 -0.24 67
IV.VVLD.HHZ. 2019-08-15T02:21:29.46 0.1 undecidable manual P 293 49.0176 50 -0.35 87
IV.BSSO.HHE. 2019-08-15T02:21:28.64 0.3 undecidable manual P 116 39.0276 50 0.36 66
IV.MCI.EHE. 2019-08-15T02:21:28.25 0.3 undecidable manual P 232 37.5291 50 0.21 69
IV.LPEL.HHE. 2019-08-15T02:21:28.17 0.6 undecidable manual P 2 38.628 50 -0.04 47
IV.INTR.HHZ. 2019-08-15T02:21:28.31 0.1 negative manual P 328 41.0256 50 -0.27 90
IV.SGG.HHN. 2019-08-15T02:21:28.01 0.3 undecidable manual P 153 38.7279 50 -0.22 68
IV.TRIV.HHZ. 2019-08-15T02:21:27.55 0.3 undecidable manual P 76 32.4453 50 0.3 68
IV.VAGA.HHZ. 2019-08-15T02:21:27.08 0.3 undecidable manual P 170 31.9458 50 -0.1 71
IV.CERA.HHZ. 2019-08-15T02:21:27.57 0.3 undecidable manual S 228 16.872 121 0.01 74
IV.POFI.HNE. 2019-08-15T02:21:27.99 0.3 undecidable manual P 273 37.9287 50 -0.11 70
IT.OPI.HGE. 2019-08-15T02:21:26.51 0.3 undecidable manual P 287 29.3484 50 -0.27 69
IV.CERA.HHZ. 2019-08-15T02:21:24.68 0.1 undecidable manual P 228 16.872 121 0.01 99
IV.RNI2.HHZ. 2019-08-15T02:21:24.68 0.3 undecidable manual S 288 1.4985 172 0.37 71
IV.MIDA.HHZ. 2019-08-15T02:21:24.92 0.3 undecidable manual S 132 9.4794 137 -0.64 64
IV.MIDA.HHZ. 2019-08-15T02:21:23.50 0.1 negative manual P 132 9.4794 137 -0.02 100
IV.RNI2.HHZ. 2019-08-15T02:21:23.06 0.1 positive manual P 288 1.4985 172 0.26 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HHE. ML:0.0 0.0003256669 0.16 AML other m 2019-08-15T02:21:26.58
IV.MIDA.HNN. ML:0.0 0.00035604655 0.2 AML other m 2019-08-15T02:21:25.33
IV.MIDA.HHN. ML:0.0 0.00032014799999999997 0.24 AML other m 2019-08-15T02:21:26.59
IV.RNI2.HNN. ML:2.3 0.0036298075000000003 0.16 AML other m 2019-08-15T02:21:24.87
IV.RNI2.HHN. ML:2.3 0.003933951999999999 0.16 AML other m 2019-08-15T02:21:24.87
IV.MIDA.HNE. ML:1.4 0.00033657435000000003 0.24 AML other m 2019-08-15T02:21:26.59
IV.CERA.HNN. ML:1.0 0.00008523594500000001 0.28 AML other m 2019-08-15T02:21:29.21
IV.CERA.HNE. ML:1.0 0.00008128342500000001 0.32 AML other m 2019-08-15T02:21:29.22
IV.CERA.HHE. ML:0.9 0.000074922915 0.32 AML other m 2019-08-15T02:21:29.22
IV.CERA.HHN. ML:1.0 0.000080446155 0.2 AML other m 2019-08-15T02:21:29.11
IV.VAGA.HNE. ML:1.1 0.000058407435 0.2 AML other m 2019-08-15T02:21:33.63
IV.VAGA.HNN. ML:1.4 0.00012313384999999998 0.2208 AML other m 2019-08-15T02:21:34.12
IV.VAGA.HHN. ML:1.5 0.0001304022 0.2 AML other m 2019-08-15T02:21:34.12
IV.VAGA.HHE. ML:1.1 0.000053887625000000004 0.2 AML other m 2019-08-15T02:21:33.63
IV.INTR.HHE. ML:1.1 0.000040175704999999996 0.2608 AML other m 2019-08-15T02:21:35.59
IV.INTR.HHN. ML:1.4 0.00007433540999999999 0.16 AML other m 2019-08-15T02:21:36.68
IV.VVLD.HHN. ML:1.2 0.000041825725 0.16 AML other m 2019-08-15T02:21:37.36
IV.VVLD.HHE. ML:1.4 0.00006429224999999999 0.44 AML other m 2019-08-15T02:21:36.92
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