Earthquake with magnitude of ML 1.7 on date 21-10-2019 and time 19:35:50 (UTC) in region 3 km SW Pizzone (IS)

A magnitude ML 1.7 earthquake occured in region: 3 km SW Pizzone (IS), on

  • 21-10-2019 19:35:50 (UTC)
  • 21-10-2019 21:35:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.65, 14.01 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pizzone IS 3 329 329
Castel San Vincenzo IS 5 516 845
Scapoli IS 6 680 1525
Rocchetta a Volturno IS 7 1113 2638
San Biagio Saracinisco FR 8 349 2987
Cerro al Volturno IS 8 1281 4268
Montenero Val Cocchiara IS 9 538 4806
Colli a Volturno IS 10 1349 6155
Alfedena AQ 10 864 7019
Scontrone AQ 11 574 7593
Picinisco FR 12 1218 8811
Fornelli IS 12 1909 10720
Filignano IS 12 648 11368
Acquaviva d'Isernia IS 12 425 11793
Barrea AQ 12 726 12519
Acquafondata FR 12 263 12782
Montaquila IS 13 2456 15238
Vallerotonda FR 13 1581 16819
Rionero Sannitico IS 13 1118 17937
Settefrati FR 13 728 18665
Viticuso FR 14 353 19018
Civitella Alfedena AQ 14 296 19314
Villa Latina FR 15 1241 20555
Forlì del Sannio IS 15 675 21230
Pozzilli IS 16 2380 23610
Villetta Barrea AQ 16 653 24263
Macchia d'Isernia IS 16 1035 25298
Sant'Elia Fiumerapido FR 17 6166 31464
Conca Casale IS 17 200 31664
Gallinaro FR 17 1269 32933
Castel di Sangro AQ 18 6538 39471
Atina FR 18 4316 43787
San Donato Val di Comino FR 18 2107 45894
Belmonte Castello FR 18 739 46633
Venafro IS 18 11280 57913
Isernia IS 19 21842 79755
Roccasicura IS 20 550 80305
Monteroduni IS 20 2264 82569
Miranda IS 20 1047 83616

Municipalities with at least 50000 inhabitants

An earthquake occurred to
69 Km NW of Caserta (76326 inhabitants)
77 Km N of Aversa (53047 inhabitants)
79 Km S of Chieti (51815 inhabitants)
82 Km N of Giugliano in Campania (122974 inhabitants)
84 Km NW of Acerra (59573 inhabitants)
84 Km NW of Afragola (65057 inhabitants)
85 Km N of Marano di Napoli (59874 inhabitants)
86 Km N of Casoria (77642 inhabitants)
86 Km NW of Benevento (60091 inhabitants)
89 Km N of Pozzuoli (81661 inhabitants)
92 Km N of Napoli (974074 inhabitants)
93 Km S of Pescara (121014 inhabitants)
93 Km SE of L'Aquila (69753 inhabitants)
94 Km E of Latina (125985 inhabitants)
96 Km NW of Portici (55274 inhabitants)
97 Km S of Montesilvano (53738 inhabitants)
97 Km N of Ercolano (53709 inhabitants)
100 Km NW of Torre del Greco (86275 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.7 2019-10-21
19:35:50
41.65 14.01 11 2019-10-21
19:48:28
Sala Sismica INGV-Roma 73380001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-21 19:35:50 ± 0.11
Latitude 41.65 ± 0.01
Longitude 14.01 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73380001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1089
Semi-minor axis of confidence ellipse (meter) 864
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 137
Circular confidence region, given by single value of horizontal uncertainty (meter) 1090
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41998
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 73380001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-21 19:48:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSSA.HHZ. 2019-10-21T19:37:27.73 3.0 undecidable manual Sn -0.35 0
IV.SPS2.HHZ. 2019-10-21T19:37:13.40 3.0 undecidable manual Sn -1.29 0
CR.STON.BHZ. 2019-10-21T19:36:49.52 3.0 undecidable manual Pg 14.74 0
IV.ERC.EHZ. 2019-10-21T19:36:39.86 3.0 undecidable manual Pn 0.18 0
IV.MSAG.HHZ. 2019-10-21T19:36:39.90 3.0 undecidable manual Sn 0.19 0
IV.APRC.HHZ. 2019-10-21T19:36:38.24 3.0 undecidable manual Sg 5.25 0
IV.ARVD.HHZ. 2019-10-21T19:36:38.38 3.0 undecidable manual Sn 0.37 0
OT.OT14.EHZ. 2019-10-21T19:36:38.06 3.0 undecidable manual Sn -1.71 0
IV.SGRT.HHZ. 2019-10-21T19:36:38.26 3.0 undecidable manual Sn 1.61 0
IV.SPS2.HHZ. 2019-10-21T19:36:31.38 3.0 negative manual Pn -2.33 0
IV.OFFI.HHZ. 2019-10-21T19:36:05.14 3.0 undecidable manual P -0.02 0
IV.LPEL.HHZ. 2019-10-21T19:36:04.98 1.0 undecidable manual S 18 0.42 50 0.04 24
IV.VVLD.HNZ. 2019-10-21T19:36:03.23 1.0 undecidable manual S 308 0.3633 50 -0.04 24
IV.SRES.HHZ. 2019-10-21T19:36:00.85 3.0 undecidable manual P 2.18 0
IV.POFI.HNZ. 2019-10-21T19:35:59.71 0.6 undecidable manual S 288 0.232 50 0.32 47
IV.LPEL.HHZ. 2019-10-21T19:35:58.59 0.6 undecidable manual P 18 0.42 50 -0.05 48
IV.VVLD.HNZ. 2019-10-21T19:35:57.42 0.3 undecidable manual P 308 0.3633 50 -0.25 69
IV.VAGA.HHZ. 2019-10-21T19:35:56.77 0.6 negative manual P 144 0.2869 50 0.41 45
IV.RNI2.HHZ. 2019-10-21T19:35:56.74 0.3 undecidable manual S 62 0.1205 129 0.67 64
IV.MCI.EHZ. 2019-10-21T19:35:55.49 0.1 undecidable manual P 223 0.214 50 0.37 93
IV.POFI.HNZ. 2019-10-21T19:35:55.46 0.6 undecidable manual P 288 0.232 50 0.03 50
IV.CERA.HHZ. 2019-10-21T19:35:54.06 0.6 undecidable manual S 172 0.0504 153 -0.27 49
IT.OPI.HGE. 2019-10-21T19:35:54.44 0.3 undecidable manual P 314 0.1853 50 -0.19 73
IV.MIDA.HHZ. 2019-10-21T19:35:54.00 0.3 undecidable manual P 92 0.1835 50 -0.6 66
IV.RNI2.HHZ. 2019-10-21T19:35:53.40 0.1 positive manual P 62 0.1205 129 -0.12 100
IV.CERA.HHZ. 2019-10-21T19:35:52.35 0.1 positive manual P 172 0.0504 153 -0.17 100
IV.LAV9.HHZ. 2019-10-21T19:35:51.60 3.0 positive manual P -1.37 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HNE. ML:1.7 0.000766 0.24 AML other m 2019-10-21T19:35:54.07
IV.CERA.HHE. ML:1.7 0.000795 0.24 AML other m 2019-10-21T19:35:54.07
IV.CERA.HHN. ML:1.8 0.000934 0.44 AML other m 2019-10-21T19:35:56.13
IV.CERA.HNN. ML:1.8 0.000886 0.56 AML other m 2019-10-21T19:35:56.13
IV.MIDA.HHE. ML:1.6 0.0002935 0.3 AML other m 2019-10-21T19:35:57.43
IV.RNI2.HHN. ML:1.9 0.000751 0.36 AML other m 2019-10-21T19:35:57.53
IV.RNI2.HNN. ML:1.8 0.000697 0.34 AML other m 2019-10-21T19:35:57.54
IV.RNI2.HHE. ML:2.2 0.00161 0.44 AML other m 2019-10-21T19:35:57.72
IV.RNI2.HNE. ML:2.2 0.001555 0.44 AML other m 2019-10-21T19:35:57.72
IV.MIDA.HHN. ML:1.7 0.000342 0.3 AML other m 2019-10-21T19:35:58.70
IV.MCI.EHE. ML:1.8 0.0003785 0.22 AML other m 2019-10-21T19:36:02.55
IV.VAGA.HHN. ML:1.4 0.0001053 0.3 AML other m 2019-10-21T19:36:03.88
IV.VAGA.HHE. ML:1.2 7.305E-5 1.2 AML other m 2019-10-21T19:36:03.23
IV.MCI.EHN. ML:1.6 0.0002635 0.98 AML other m 2019-10-21T19:36:05.04
IV.LPEL.HHN. ML:1.6 0.0001105 0.78 AML other m 2019-10-21T19:36:06.46
IV.LPEL.HHE. ML:1.7 0.000138 0.6 AML other m 2019-10-21T19:36:06.03
IV.SGRT.HHN. ML:1.9 4.685E-5 1.74 AML other m 2019-10-21T19:36:43.94
IV.SGRT.HHE. ML:1.9 3.935E-5 0.8 AML other m 2019-10-21T19:36:45.58
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download