Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 1.5 on date 18-11-2020 and time 14:03:35 (Italy) in region 3 km SW Campochiaro (CB)

A magnitude ML 1.5 (quarry blast) earthquake occured in region: 3 km SW Campochiaro (CB), on

  • 18-11-2020 13:03:35 (UTC)
  • 18-11-2020 14:03:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.4310, 14.4740 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Campochiaro CB 3 646 646
San Polo Matese CB 4 470 1116
Guardiaregia CB 6 801 1917
Bojano CB 6 8058 9975
San Massimo CB 9 855 10830
Colle d'Anchise CB 10 807 11637
San Gregorio Matese CE 10 988 12625
Castello del Matese CE 11 1494 14119
Cusano Mutri BN 11 4091 18210
Pietraroja BN 11 545 18755
Piedimonte Matese CE 12 11297 30052
Vinchiaturo CB 12 3324 33376
San Potito Sannitico CE 12 1925 35301
Cantalupo nel Sannio IS 12 739 36040
Sepino CB 12 1964 38004
Roccamandolfi IS 13 938 38942
Spinete CB 13 1320 40262
Baranello CB 13 2673 42935
San Giuliano del Sannio CB 14 1029 43964
Gioia Sannitica CE 15 3638 47602
Macchiagodena IS 15 1854 49456
Busso CB 16 1273 50729
Santa Maria del Molise IS 16 665 51394
Alife CE 16 7616 59010
Sant'Elena Sannita IS 16 275 59285
Cercepiccola CB 17 681 59966
Faicchio BN 17 3634 63600
Sassinoro BN 17 618 64218
Casalciprano CB 18 564 64782
Cerreto Sannita BN 18 3940 68722
Castelpetroso IS 18 1680 70402
San Lorenzello BN 18 2227 72629
Valle Agricola CE 18 890 73519
Castelpizzuto IS 18 155 73674
Letino CE 19 712 74386
Morcone BN 19 4932 79318
Mirabello Sannitico CB 19 2180 81498
Frosolone IS 19 3170 84668
Sant'Angelo d'Alife CE 19 2270 86938
Oratino CB 20 1641 88579
Ferrazzano CB 20 3344 91923

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of Caserta (76326 inhabitants)
42 Km NW of Benevento (60091 inhabitants)
55 Km N of Acerra (59573 inhabitants)
56 Km NE of Aversa (53047 inhabitants)
58 Km N of Afragola (65057 inhabitants)
60 Km NE of Giugliano in Campania (122974 inhabitants)
60 Km N of Casoria (77642 inhabitants)
63 Km NW of Avellino (54857 inhabitants)
64 Km NE of Marano di Napoli (59874 inhabitants)
68 Km N of Portici (55274 inhabitants)
68 Km N of Napoli (974074 inhabitants)
70 Km N of Ercolano (53709 inhabitants)
72 Km N of Torre del Greco (86275 inhabitants)
72 Km NE of Pozzuoli (81661 inhabitants)
76 Km N of Scafati (50787 inhabitants)
81 Km W of San Severo (53905 inhabitants)
82 Km N of Castellammare di Stabia (66466 inhabitants)
83 Km N of Cava de' Tirreni (53659 inhabitants)
87 Km N of Salerno (135261 inhabitants)
89 Km W of Foggia (151991 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 2020-11-18
13:03:35		 41.4308 14.474 1 2021-02-26
14:56:09		 Bollettino Sismico Italiano INGV 85174871
Reviewed
Rev100 		ML 1.8 2020-11-18
13:03:34		 41.3643 14.506 19 2020-11-18
13:59:19		 Sala Sismica INGV-Roma 84826971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-18 13:03:35 ± 0.11
Latitude 41.4308 ± 0.0072
Longitude 14.4740 ± 0.0084
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 85174871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 870
Semi-minor axis of confidence ellipse (meter) 680
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 30
Circular confidence region, given by single value of horizontal uncertainty (meter) 870.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.07824
Epicentral distance of station farthest from the epicenter (degree) 0.37951
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 85174871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-27 13:48:07

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 84826971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-18 13:59:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERA.HNN. 2020-11-18T13:03:44.53 0.3 undecidable manual P 296 42.1245 91 0.24 68
IV.RNI2.HHE. 2020-11-18T13:03:43.26 0.3 undecidable manual P 319 40.3263 91 -0.66 61
IV.PSB1.HNE. 2020-11-18T13:03:43.20 0.3 undecidable manual P 129 36.2415 91 0.09 71
IV.TRIV.HNE. 2020-11-18T13:03:43.13 0.3 undecidable manual P 10 37.8288 91 -0.29 68
IV.MIDA.HHE. 2020-11-18T13:03:42.58 0.3 undecidable manual P 322 29.748 91 0.78 59
IV.VITU.HHZ. 2020-11-18T13:03:42.07 0.6 undecidable manual P 155 30.3474 91 0.14 47
IV.VAGA.HHZ. 2020-11-18T13:03:39.70 0.1 undecidable manual P 265 20.0688 91 -0.16 96
IV.SACR.HNN. 2020-11-18T13:03:39.82 0.1 undecidable manual P 101 19.6692 91 0.04 98
IV.BSSO.HHZ. 2020-11-18T13:03:39.16 0.1 undecidable manual P 38 16.1727 92 0.07 98
IV.SGG.HHZ. 2020-11-18T13:03:37.75 0.1 undecidable manual P 238 9.2796 93 0.04 100
IV.PTRJ.HHZ. 2020-11-18T13:03:37.44 0.1 undecidable manual P 148 8.6802 93 -0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VAGA.HNE. ML:1.4 0.0002249517 0.256 AML other m 2020-11-18T13:03:44.78
IV.VAGA.HHE. ML:1.4 0.00023291460000000001 0.2368 AML other m 2020-11-18T13:03:44.77
IV.BSSO.HHE. ML:1.5 0.00034307475 0.32 AML other m 2020-11-18T13:03:45.39
IV.BSSO.HNE. ML:1.5 0.00034856925 0.32 AML other m 2020-11-18T13:03:45.55
IV.BSSO.HHN. ML:1.4 0.0003025 0.42 AML other m 2020-11-18T13:03:46.66
IV.BSSO.HNN. ML:1.4 0.0002505 0.36 AML other m 2020-11-18T13:03:46.69
IV.VAGA.HNN. ML:1.7 0.00045618464999999995 1.6992 AML other m 2020-11-18T13:03:48.04
IV.VAGA.HHN. ML:1.8 0.00047469915 1.6992 AML other m 2020-11-18T13:03:48.04
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