Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 15-08-2019 and time 19:23:44 (Italy) in region 2 km W Forlì del Sannio (IS)

A magnitude ML 1.5 earthquake occured in region: 2 km W Forlì del Sannio (IS), on

  • 15-08-2019 17:23:44 (UTC)
  • 15-08-2019 19:23:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7000, 14.1620 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 2 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 10 516 6150
San Pietro Avellana IS 10 503 6653
Rocchetta a Volturno IS 10 1113 7766
Castel di Sangro AQ 11 6538 14304
Fornelli IS 11 1909 16213
Pizzone IS 11 329 16542
Alfedena AQ 11 864 17406
Carovilli IS 11 1359 18765
Scontrone AQ 11 574 19339
Vastogirardi IS 12 704 20043
Colli a Volturno IS 12 1349 21392
Scapoli IS 13 680 22072
Isernia IS 14 21842 43914
Pesche IS 14 1661 45575
Pescolanciano IS 15 855 46430
Montaquila IS 15 2456 48886
Macchia d'Isernia IS 15 1035 49921
Barrea AQ 16 726 50647
Sessano del Molise IS 16 727 51374
Pettoranello del Molise IS 17 460 51834
Capracotta IS 17 903 52737
Ateleta AQ 18 1181 53918
Roccaraso AQ 18 1627 55545
Sant'Agapito IS 18 1496 57041
Carpinone IS 18 1157 58198
Castel del Giudice IS 18 346 58544
Chiauci IS 19 233 58777
Filignano IS 19 648 59425
Pietrabbondante IS 20 759 60184
Monteroduni IS 20 2264 62448
Civitella Alfedena AQ 20 296 62744

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)
82 Km NW of Benevento (60091 inhabitants)
85 Km S of Pescara (121014 inhabitants)
86 Km N of Acerra (59573 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)
96 Km SE of L'Aquila (69753 inhabitants)
99 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 1.5 2019-08-15
17:23:44		 41.7003 14.1618 10 2019-11-13
14:30:58		 Bollettino Sismico Italiano INGV 71650311
Reviewed
Rev100 		ML 1.5 2019-08-15
17:23:44		 41.6883 14.1803 10 2019-08-15
17:30:22		 Sala Sismica INGV-Roma 71527471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-15 17:23:44 ± 0.05
Latitude 41.7003 ± 0.0036
Longitude 14.1618 ± 0.0036
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 71650311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 388
Semi-minor axis of confidence ellipse (meter) 304
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 196
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00719
Epicentral distance of station farthest from the epicenter (degree) 0.60165
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 71650311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-22 08:50:30

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 71527471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-15 17:30:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T0110.HHZ. 2019-08-15T17:24:05.30 0.3 undecidable manual S 332 66.7776 50 -0.01 69
IV.VVLD.HHZ. 2019-08-15T17:24:00.32 0.6 undecidable manual S 293 48.3183 50 -0.08 47
IV.LRP.EHN. 2019-08-15T17:24:00.46 0.6 undecidable manual S 263 48.0186 50 0.14 46
IT.SULP.HGN. 2019-08-15T17:24:00.32 0.6 undecidable manual S 336 46.8198 50 0.32 45
IV.BSSO.HHE. 2019-08-15T17:23:58.13 0.3 undecidable manual S 115 39.7269 50 0.04 72
IV.INTR.HHZ. 2019-08-15T17:23:58.42 0.3 undecidable manual S 328 40.5261 50 0.11 71
IV.POFI.HNE. 2019-08-15T17:23:57.44 0.6 undecidable manual S 273 37.3293 50 -0.01 48
IV.LPEL.HHE. 2019-08-15T17:23:57.97 0.3 undecidable manual S 3 38.4282 50 0.2 70
IV.TRIV.HHZ. 2019-08-15T17:23:56.20 1.0 undecidable manual S 77 32.9448 50 -0.1 24
IV.T0110.HHZ. 2019-08-15T17:23:56.40 0.1 undecidable manual P 332 66.7776 50 -0.25 87
IV.VAGA.HHZ. 2019-08-15T17:23:56.40 0.6 undecidable manual S 169 32.1456 50 0.31 46
IT.OPI.HGE. 2019-08-15T17:23:55.27 0.6 undecidable manual S 287 28.749 50 0.11 48
IV.FRES.HHE. 2019-08-15T17:23:54.52 1.0 undecidable manual P 54 51.7038 50 0.18 23
IV.VVLD.HHZ. 2019-08-15T17:23:53.46 0.3 undecidable manual P 293 48.3183 50 -0.35 66
IV.LRP.EHN. 2019-08-15T17:23:53.68 0.3 undecidable manual P 263 48.0186 50 -0.09 70
IT.SULP.HGN. 2019-08-15T17:23:53.36 0.6 undecidable manual P 336 46.8198 50 -0.23 46
IV.LPEL.HHE. 2019-08-15T17:23:52.09 0.1 undecidable manual P 3 38.4282 50 -0.2 93
IV.INTR.HHZ. 2019-08-15T17:23:52.37 0.1 negative manual P 328 40.5261 50 -0.24 92
IV.POFI.HNE. 2019-08-15T17:23:52.18 0.3 undecidable manual P 273 37.3293 50 0.07 72
IV.BSSO.HHE. 2019-08-15T17:23:52.80 0.1 undecidable manual P 115 39.7269 50 0.32 91
IV.VAGA.HHZ. 2019-08-15T17:23:51.07 0.6 undecidable manual P 169 32.1456 50 -0.25 47
IV.CERA.HHZ. 2019-08-15T17:23:51.55 0.3 undecidable manual S 226 16.4724 122 0.03 75
IV.TRIV.HHZ. 2019-08-15T17:23:51.60 0.1 undecidable manual P 77 32.9448 50 0.15 95
IT.OPI.HGE. 2019-08-15T17:23:50.76 0.6 undecidable manual P 287 28.749 50 -0.03 49
IV.MIDA.HHZ. 2019-08-15T17:23:49.16 0.3 undecidable manual S 130 9.9789 135 -0.6 66
IV.CERA.HHZ. 2019-08-15T17:23:48.73 0.1 positive manual P 226 16.4724 122 0.04 100
IV.RNI2.HHZ. 2019-08-15T17:23:48.69 0.3 undecidable manual S 293 0.7992 175 0.36 72
IV.RNI2.HHZ. 2019-08-15T17:23:47.13 0.1 undecidable manual P 293 0.7992 175 0.28 98
IV.MIDA.HHZ. 2019-08-15T17:23:47.58 0.1 negative manual P 130 9.9789 135 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HHN. ML:1.7 0.000737 0.86 AML other m 2019-08-15T17:23:49.47
IV.MIDA.HNE. ML:1.7 0.0006885 0.86 AML other m 2019-08-15T17:23:49.47
IV.MIDA.HNN. ML:1.7 0.0006 1.18 AML other m 2019-08-15T17:23:50.71
IV.MIDA.HHE. ML:1.7 0.0006855 1.18 AML other m 2019-08-15T17:23:50.71
IV.INTR.HNE. ML:1.4 0.00009363911 0.1536 AML other m 2019-08-15T17:23:59.07
IV.INTR.HNN. ML:1.5 0.000116217245 0.2816 AML other m 2019-08-15T17:23:59.26
IV.INTR.HHN. ML:1.6 0.0001258 0.22 AML other m 2019-08-15T17:23:59.64
IV.INTR.HHE. ML:1.3 0.0000632 1.02 AML other m 2019-08-15T17:23:59.65
IV.T0110.HHE. ML:1.5 0.00006102367 0.32 AML other m 2019-08-15T17:24:08.17
IV.T0110.HHN. ML:1.4 0.000045767169999999996 0.2944 AML other m 2019-08-15T17:24:10.00
IV.CERA.HHE. ML:1.1 0.0001173276 0.2944 AML other m 2019-08-15T17:23:53.27
IV.CERA.HHN. ML:1.0 0.00008912286 0.2688 AML other m 2019-08-15T17:23:51.76
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