Earthquake (quarry blast) with magnitude of ML 1.3 on date 21-09-2020 and time 12:56:44 (UTC) in region 2 km NW Belmonte Castello (FR)

A magnitude ML 1.3 (quarry blast) earthquake occured in region: 2 km NW Belmonte Castello (FR), on

  • 21-09-2020 12:56:44 (UTC)
  • 21-09-2020 14:56:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.5960, 13.7940 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Belmonte Castello FR 2 739 739
Atina FR 3 4316 5055
Villa Latina FR 4 1241 6296
Terelle FR 5 422 6718
Casalattico FR 6 574 7292
Gallinaro FR 7 1269 8561
Casalvieri FR 8 2698 11259
Picinisco FR 8 1218 12477
Sant'Elia Fiumerapido FR 9 6166 18643
Settefrati FR 10 728 19371
Colle San Magno FR 10 699 20070
Villa Santa Lucia FR 10 2632 22702
Castrocielo FR 11 3965 26667
Vallerotonda FR 11 1581 28248
Alvito FR 11 2713 30961
San Biagio Saracinisco FR 11 349 31310
Roccasecca FR 11 7365 38675
Piedimonte San Germano FR 11 6535 45210
Vicalvi FR 12 783 45993
Cassino FR 12 36142 82135
San Donato Val di Comino FR 13 2107 84242
Fontechiari FR 13 1303 85545
Santopadre FR 13 1357 86902
Posta Fibreno FR 14 1139 88041
Aquino FR 14 5370 93411
Acquafondata FR 14 263 93674
Cervaro FR 16 8109 101783
Colfelice FR 16 1932 103715
Arpino FR 16 7262 110977
Viticuso FR 17 353 111330
Rocca d'Arce FR 17 959 112289
Pignataro Interamna FR 18 2595 114884
Broccostella FR 18 2741 117625
Arce FR 18 5756 123381
Campoli Appennino FR 19 1725 125106
Pontecorvo FR 19 13242 138348
San Vittore del Lazio FR 19 2636 140984

Municipalities with at least 50000 inhabitants

An earthquake occurred to
73 Km NW of Caserta (76326 inhabitants)
75 Km E of Latina (125985 inhabitants)
77 Km NW of Aversa (53047 inhabitants)
82 Km NW of Giugliano in Campania (122974 inhabitants)
84 Km NW of Marano di Napoli (59874 inhabitants)
85 Km E of Velletri (53303 inhabitants)
86 Km NW of Afragola (65057 inhabitants)
87 Km N of Pozzuoli (81661 inhabitants)
87 Km NW of Acerra (59573 inhabitants)
87 Km NW of Casoria (77642 inhabitants)
90 Km SW of Chieti (51815 inhabitants)
90 Km SE of L'Aquila (69753 inhabitants)
92 Km E of Tivoli (56533 inhabitants)
92 Km NW of Napoli (974074 inhabitants)
95 Km E of Aprilia (73446 inhabitants)
97 Km NW of Benevento (60091 inhabitants)
98 Km NW of Portici (55274 inhabitants)
98 Km E of Anzio (54211 inhabitants)
99 Km NW of Ercolano (53709 inhabitants)
99 Km E of Guidonia Montecelio (88673 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 2020-09-21
12:56:44
41.596 13.794 1 2021-02-26
14:56:10
Bollettino Sismico Italiano INGV 85447031
Reviewed
Rev100
ML 1.4 2020-09-21
12:56:44
41.5758 13.7877 12 2020-09-21
13:04:27
Sala Sismica INGV-Roma 83102661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-21 12:56:44 ± 0.19
Latitude 41.5960 ± 0.0117
Longitude 13.7940 ± 0.0156
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 85447031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1430
Semi-minor axis of confidence ellipse (meter) 1170
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 41
Circular confidence region, given by single value of horizontal uncertainty (meter) 1430.0
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 37
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51711
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 85447031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-15 14:43:43

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 83102661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-21 13:04:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HLNI.HHZ. 2020-09-21T12:58:15.28 3.0 undecidable manual Sg 11.05 0
IV.CROCE.HHZ. 2020-09-21T12:58:14.52 3.0 undecidable manual Sn -0.69 0
OX.ACOM.HHZ. 2020-09-21T12:58:12.55 3.0 undecidable manual Pg 15.25 0
IV.PESA.HHZ. 2020-09-21T12:58:06.45 3.0 undecidable manual Sg 5.46 0
IV.APEC.HHZ. 2020-09-21T12:58:02.34 3.0 undecidable manual Sg 8.35 0
SL.KOGS.BHZ. 2020-09-21T12:58:02.22 3.0 negative manual Pn 2.44 0
MN.TIR.HHZ. 2020-09-21T12:58:00.17 3.0 undecidable manual Pg 18.98 0
GU.GORR.HHZ. 2020-09-21T12:57:55.22 3.0 negative manual Pg 8.21 0
IV.FOSV.EHZ. 2020-09-21T12:57:53.36 3.0 undecidable manual Sg 7.34 0
IV.PE3.EHZ. 2020-09-21T12:57:47.20 3.0 undecidable manual Sn -9.53 0
GU.RNCA.HHZ. 2020-09-21T12:57:46.95 3.0 negative manual Pn -1 0
IV.RIBO.EHZ.01 2020-09-21T12:57:44.46 3.0 undecidable manual Sn -9.39 0
SL.BOJS.BHZ. 2020-09-21T12:57:44.52 3.0 negative manual Pn -0.15 0
IV.LPDG.HHZ. 2020-09-21T12:57:42.94 3.0 undecidable manual Pn -5.82 0
IV.MF5.EHZ. 2020-09-21T12:57:37.87 3.0 undecidable manual Sg 1.52 0
IV.IFIL.HHZ. 2020-09-21T12:57:33.21 3.0 undecidable manual Sn -0.99 0
IV.CSNT.HHZ. 2020-09-21T12:57:30.22 3.0 undecidable manual Pg 7.66 0
IV.CRAC.EHZ. 2020-09-21T12:57:29.95 3.0 undecidable manual Sn -0.85 0
IV.ROSPO.HHZ. 2020-09-21T12:57:28.83 3.0 undecidable manual Sg 5.1 0
IV.ECTS.HHZ. 2020-09-21T12:57:24.76 3.0 undecidable manual Pg 6.65 0
IV.LNSS.HHZ. 2020-09-21T12:57:21.25 3.0 undecidable manual Sn -7.22 0
IV.NOCI.HHZ. 2020-09-21T12:57:17.77 3.0 positive manual Pg 6.12 0
IV.CMPR.HHZ. 2020-09-21T12:57:15.66 3.0 undecidable manual Sg 4.94 0
XK.GIZZ.HHZ. 2020-09-21T12:57:11.68 3.0 undecidable manual Pn -0.32 0
IV.PTQR.HHZ. 2020-09-21T12:56:55.08 0.3 undecidable manual P 326 57.3981 90 -1.02 51
IV.RCAV.EHZ. 2020-09-21T12:56:54.87 3.0 undecidable manual Pg -0.06 0
IV.INTR.HHE. 2020-09-21T12:56:53.86 1.0 undecidable manual P 11 47.0196 91 -0.16 23
IV.CMPR.HHZ. 2020-09-21T12:56:52.22 3.0 negative manual P -1.98 0
IV.MIDA.HNZ. 2020-09-21T12:56:51.73 0.3 undecidable manual P 82 38.5281 91 -0.59 63
IV.VVLD.HHZ. 2020-09-21T12:56:50.93 0.1 undecidable manual P 335 33.4443 91 -0.38 90
IT.OPI.HGZ. 2020-09-21T12:56:49.33 0.6 undecidable manual P 9 20.2686 91 0.67 42
IV.LIK.EHN.01 2020-09-21T12:56:49.18 0.3 undecidable manual P 241 22.2555 91 0.12 73
IV.POFI.HHZ. 2020-09-21T12:56:48.21 0.1 undecidable manual P 333 15.0738 92 0.58 88
IV.CERA.HHZ. 2020-09-21T12:56:48.70 0.1 undecidable manual P 89 18.5703 92 0.37 93
IV.LRP.EHZ. 2020-09-21T12:56:48.37 0.1 undecidable manual P 288 18.0708 92 0.14 98
IV.MCI.EHZ. 2020-09-21T12:56:46.87 0.1 undecidable manual P 172 11.7771 92 -0.09 100
IV.IFOR.HHZ. 2020-09-21T12:56:42.19 3.0 positive manual P 1.17 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCI.EHE. ML:1.8 0.00107 0.22 AML other m 2020-09-21T12:56:50.06
IV.MCI.EHN. ML:1.7 0.000761 0.28 AML other m 2020-09-21T12:56:50.47
IV.POFI.HHN. ML:0.9 0.000091704015 1.5776 AML other m 2020-09-21T12:56:51.20
IV.LRP.EHE. ML:1.4 0.0002515 0.66 AML other m 2020-09-21T12:56:52.71
IV.LRP.EHN. ML:1.0 0.00008450000000000001 0.34 AML other m 2020-09-21T12:56:52.76
IV.POFI.HHE. ML:1.0 0.000127 0.62 AML other m 2020-09-21T12:56:52.90
IV.CERA.HHE. ML:1.2 0.000131 0.52 AML other m 2020-09-21T12:56:53.31
IV.CERA.HHN. ML:1.4 0.00022437089999999998 1.2576 AML other m 2020-09-21T12:56:54.04
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