Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 31-10-2019 and time 00:19:00 (Italy) in region 2 km W Montaquila (IS)

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

  • 30-10-2019 23:19:00 (UTC)
  • 31-10-2019 00:19:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.5610, 14.0890 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.

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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
Montaquila IS 3 2456 2456
Filignano IS 3 648 3104
Colli a Volturno IS 5 1349 4453
Pozzilli IS 6 2380 6833
Scapoli IS 7 680 7513
Macchia d'Isernia IS 7 1035 8548
Fornelli IS 7 1909 10457
Rocchetta a Volturno IS 7 1113 11570
Monteroduni IS 8 2264 13834
Venafro IS 9 11280 25114
Conca Casale IS 10 200 25314
Cerro al Volturno IS 11 1281 26595
Viticuso FR 11 353 26948
Castel San Vincenzo IS 11 516 27464
Capriati a Volturno CE 11 1541 29005
Sant'Agapito IS 11 1496 30501
Acquafondata FR 12 263 30764
Isernia IS 12 21842 52606
Pizzone IS 13 329 52935
Ciorlano CE 14 426 53361
Acquaviva d'Isernia IS 14 425 53786
Longano IS 14 690 54476
Fontegreca CE 14 811 55287
San Biagio Saracinisco FR 15 349 55636
Vallerotonda FR 15 1581 57217
Sesto Campano IS 16 2388 59605
Gallo Matese CE 16 579 60184
Pettoranello del Molise IS 16 460 60644
Miranda IS 16 1047 61691
San Vittore del Lazio FR 17 2636 64327
San Pietro Infine CE 17 944 65271
Forlì del Sannio IS 17 675 65946
Pesche IS 17 1661 67607
Prata Sannita CE 17 1502 69109
Montenero Val Cocchiara IS 17 538 69647
Rionero Sannitico IS 18 1118 70765
Castelpizzuto IS 18 155 70920
Cervaro FR 18 8109 79029
Letino CE 18 712 79741
Sant'Elia Fiumerapido FR 19 6166 85907
Pratella CE 19 1565 87472
Mignano Monte Lungo CE 19 3250 90722
Roccasicura IS 20 550 91272
Alfedena AQ 20 864 92136
Carpinone IS 20 1157 93293

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km NW of Caserta (76326 inhabitants)
66 Km N of Aversa (53047 inhabitants)
71 Km N of Giugliano in Campania (122974 inhabitants)
72 Km NW of Acerra (59573 inhabitants)
73 Km N of Afragola (65057 inhabitants)
74 Km N of Marano di Napoli (59874 inhabitants)
75 Km N of Casoria (77642 inhabitants)
75 Km NW of Benevento (60091 inhabitants)
79 Km N of Pozzuoli (81661 inhabitants)
81 Km N of Napoli (974074 inhabitants)
85 Km N of Portici (55274 inhabitants)
86 Km N of Ercolano (53709 inhabitants)
88 Km S of Chieti (51815 inhabitants)
89 Km N of Torre del Greco (86275 inhabitants)
93 Km NW of Avellino (54857 inhabitants)
97 Km NW of Scafati (50787 inhabitants)
99 Km E of Latina (125985 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 2019-10-30
23:19:00		 41.561 14.089 11 2020-02-28
16:42:00		 Bollettino Sismico Italiano INGV 73556801
Reviewed
Rev100 		ML 1.4 2019-10-30
23:19:00		 41.5548 14.0805 11 2019-10-30
23:28:24		 Sala Sismica INGV-Roma 73541981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-30 23:19:00 ± 0.08
Latitude 41.5610 ± 0.0045
Longitude 14.0890 ± 0.0072
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 73556801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 550
Semi-minor axis of confidence ellipse (meter) 435
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 278
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.06475
Epicentral distance of station farthest from the epicenter (degree) 0.79590
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:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 73541981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-30 23:28:24

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 73556801
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-15 15:43:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCRE.HHZ. 2019-10-30T23:19:15.09 0.3 undecidable manual P 161 87.1461 50 -0.14 64
IV.VBKN.HHZ. 2019-10-30T23:19:15.05 0.1 undecidable manual P 161 85.9473 50 -0.01 88
IV.VTIR.HHZ. 2019-10-30T23:19:15.60 0.6 undecidable manual P 161 88.3449 50 0.18 43
IV.INTR.HHZ. 2019-10-30T23:19:10.04 0.6 undecidable manual P 343 52.2033 50 0.18 47
IV.MCI.EHZ. 2019-10-30T23:19:10.02 0.6 undecidable manual S 251 24.1536 50 0.71 44
IV.VVLD.HHZ. 2019-10-30T23:19:09.71 0.6 undecidable manual P 312 51.6039 50 -0.05 45
IV.VAGA.HHZ. 2019-10-30T23:19:08.80 0.3 undecidable manual S 143 20.1687 50 0.56 63
IV.MIDA.HHZ. 2019-10-30T23:19:07.07 0.1 undecidable manual S 57 16.3725 124 -0.14 100
IV.POFI.HHZ. 2019-10-30T23:19:07.14 0.3 undecidable manual P 299 35.742 50 -0.18 69
IV.RNI2.HHZ. 2019-10-30T23:19:07.76 0.6 undecidable manual S 18 16.6722 123 0.47 46
IV.MCI.EHZ. 2019-10-30T23:19:06.08 1.0 undecidable manual P 251 24.1536 50 0.54 23
IV.SGG.HHZ. 2019-10-30T23:19:06.75 0.6 undecidable manual P 129 30.9468 50 0.18 49
IV.VAGA.HHZ. 2019-10-30T23:19:04.67 0.1 undecidable manual P 143 20.1687 50 -0.24 98
IV.CERA.HHZ. 2019-10-30T23:19:04.93 0.3 undecidable manual S 305 7.1928 147 0.01 75
IV.MIDA.HHZ. 2019-10-30T23:19:04.23 0.1 undecidable manual P 57 16.3725 124 -0.09 100
IV.RNI2.HHZ. 2019-10-30T23:19:04.58 0.1 undecidable manual P 18 16.6722 123 0.21 98
IT.VNF1.HGZ. 2019-10-30T23:19:03.11 0.3 undecidable manual P 200 9.4794 139 -0.17 77
IV.CERA.HHZ. 2019-10-30T23:19:02.59 0.1 undecidable manual P 305 7.1928 147 -0.4 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HNE. ML:1.2 0.00012743537 0.256 AML other m 2019-10-30T23:19:11.16
IV.MIDA.HHN. ML:1.3 0.00018263125 0.4864 AML other m 2019-10-30T23:19:11.14
IV.MIDA.HNN. ML:1.5 0.0002612384 0.7552 AML other m 2019-10-30T23:19:12.84
IV.MIDA.HHE. ML:1.4 0.0001966114 0.64 AML other m 2019-10-30T23:19:11.92
IV.RNI2.HNN. ML:1.3 0.00017196445 0.896 AML other m 2019-10-30T23:19:15.40
IV.RNI2.HNE. ML:1.4 0.00022087025 0.2048 AML other m 2019-10-30T23:19:09.38
IV.RNI2.HHN. ML:1.3 0.00018195005 0.4992 AML other m 2019-10-30T23:19:16.24
IV.RNI2.HHE. ML:1.4 0.00023250860000000002 0.1792 AML other m 2019-10-30T23:19:09.38
IV.VAGA.HHN. ML:1.6 0.00026783164999999996 0.2432 AML other m 2019-10-30T23:19:11.21
IV.VAGA.HHE. ML:1.4 0.0001979648 0.3712 AML other m 2019-10-30T23:19:10.97
IV.VAGA.HNE. ML:1.4 0.00017807345000000002 0.3584 AML other m 2019-10-30T23:19:10.97
IV.VAGA.HNN. ML:1.6 0.00025901569999999994 0.3456 AML other m 2019-10-30T23:19:10.92
IV.POFI.HHE. ML:0.9 0.000028025325000000003 0.256 AML other m 2019-10-30T23:19:18.20
IV.POFI.HNN. ML:1.6 0.00016937575 0.8704 AML other m 2019-10-30T23:19:16.60
IV.POFI.HNE. ML:1.6 0.00014299555 0.8576 AML other m 2019-10-30T23:19:16.10
IV.POFI.HHN. ML:0.8 0.000023098665 0.6016 AML other m 2019-10-30T23:19:14.78
IV.VVLD.HHN. ML:1.3 0.00004260623500000001 0.3584 AML other m 2019-10-30T23:19:20.10
IV.VVLD.HHE. ML:1.2 0.00004208325 0.32 AML other m 2019-10-30T23:19:21.38
IV.INTR.HHN. ML:1.3 0.000048423095 0.32 AML other m 2019-10-30T23:19:20.83
IV.INTR.HHE. ML:1.3 0.00005040123 0.3584 AML other m 2019-10-30T23:19:19.60
IV.VBKN.HHE. ML:2.7 0.00064894675 0.1024 AML other m 2019-10-30T23:19:16.89
IV.VBKN.HHN. ML:2.6 0.0005733975499999999 0.0896 AML other m 2019-10-30T23:19:15.48
IV.VCRE.HHN. ML:2.6 0.00047442150000000005 0.1536 AML other m 2019-10-30T23:19:16.10
IV.VCRE.HHE. ML:2.5 0.0003672012 0.1792 AML other m 2019-10-30T23:19:15.64
IV.VTIR.HHE. ML:1.9 0.000094805415 0.0896 AML other m 2019-10-30T23:19:18.08
IV.VTIR.HHN. ML:1.8 0.00007662046 0.0768 AML other m 2019-10-30T23:19:17.05
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