Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 01-09-2021 and time 20:20:54 (Italy) in region 4 km W Scapoli (IS)

A magnitude ML 1.0 earthquake occured in region: 4 km W Scapoli (IS), on

  • 01-09-2021 18:20:54 (UTC)
  • 01-09-2021 20:20:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6060, 14.0090 at 7 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
Scapoli IS 4 680 680
San Biagio Saracinisco FR 7 349 1029
Rocchetta a Volturno IS 7 1113 2142
Castel San Vincenzo IS 7 516 2658
Pizzone IS 7 329 2987
Filignano IS 8 648 3635
Colli a Volturno IS 8 1349 4984
Acquafondata FR 8 263 5247
Viticuso FR 10 353 5600
Cerro al Volturno IS 10 1281 6881
Vallerotonda FR 10 1581 8462
Montaquila IS 10 2456 10918
Fornelli IS 11 1909 12827
Pozzilli IS 11 2380 15207
Conca Casale IS 12 200 15407
Picinisco FR 13 1218 16625
Montenero Val Cocchiara IS 13 538 17163
Venafro IS 14 11280 28443
Sant'Elia Fiumerapido FR 14 6166 34609
Acquaviva d'Isernia IS 14 425 35034
Macchia d'Isernia IS 14 1035 36069
Villa Latina FR 14 1241 37310
Alfedena AQ 15 864 38174
Settefrati FR 15 728 38902
Scontrone AQ 16 574 39476
Rionero Sannitico IS 16 1118 40594
Cervaro FR 16 8109 48703
Belmonte Castello FR 17 739 49442
San Vittore del Lazio FR 17 2636 52078
Monteroduni IS 17 2264 54342
Barrea AQ 17 726 55068
Atina FR 17 4316 59384
Forlì del Sannio IS 18 675 60059
Isernia IS 18 21842 81901
San Pietro Infine CE 18 944 82845
Gallinaro FR 18 1269 84114
Civitella Alfedena AQ 19 296 84410
Sant'Agapito IS 19 1496 85906
Capriati a Volturno CE 19 1541 87447
Cassino FR 19 36142 123589
San Donato Val di Comino FR 20 2107 125696
Terelle FR 20 422 126118

Municipalities with at least 50000 inhabitants

An earthquake occurred to
65 Km NW of Caserta (76326 inhabitants)
72 Km N of Aversa (53047 inhabitants)
77 Km N of Giugliano in Campania (122974 inhabitants)
79 Km NW of Acerra (59573 inhabitants)
80 Km NW of Afragola (65057 inhabitants)
80 Km N of Marano di Napoli (59874 inhabitants)
81 Km N of Casoria (77642 inhabitants)
83 Km NW of Benevento (60091 inhabitants)
84 Km S of Chieti (51815 inhabitants)
85 Km N of Pozzuoli (81661 inhabitants)
88 Km N of Napoli (974074 inhabitants)
92 Km NW of Portici (55274 inhabitants)
93 Km NW of Ercolano (53709 inhabitants)
93 Km E of Latina (125985 inhabitants)
96 Km NW of Torre del Greco (86275 inhabitants)
97 Km SE of L'Aquila (69753 inhabitants)
97 Km S of Pescara (121014 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 1.0 2021-09-01
18:20:54		 41.6058 14.0087 7 2022-03-30
13:04:41		 Bollettino Sismico Italiano INGV 102055421
Reviewed
Rev100 		ML 1.0 2021-09-01
18:20:54		 41.5995 13.9937 8 2021-09-01
18:26:12		 Sala Sismica INGV-Roma 94928201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-01 18:20:54 ± 0.14
Latitude 41.6058 ± 0.0099
Longitude 14.0087 ± 0.0108
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 102055421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 996
Semi-minor axis of confidence ellipse (meter) 842
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 159
Circular confidence region, given by single value of horizontal uncertainty (meter) 1000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.01079
Epicentral distance of station farthest from the epicenter (degree) 0.41279
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 102055421
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-17 03:00:13

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 94928201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-01 18:26:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.INTR.HNZ. 2021-09-01T18:21:10.46 0.6 undecidable manual S 349 45.8208 50 0.83 51
IV.VVLD.HHZ. 2021-09-01T18:21:08.43 0.6 undecidable manual S 313 43.3233 50 -0.53 57
IV.VAGA.HHZ. 2021-09-01T18:21:04.03 0.6 undecidable manual S 138 28.2495 105 -0.22 63
IV.INTR.HNZ. 2021-09-01T18:21:03.11 0.3 undecidable manual P 349 45.8208 50 0.03 96
IV.MCI.EHZ. 2021-09-01T18:21:02.50 0.6 undecidable manual S 232 20.6682 110 0.77 54
IV.VVLD.HHZ. 2021-09-01T18:21:01.97 0.3 undecidable manual P 313 43.3233 50 -0.72 80
IV.MIDA.HHZ. 2021-09-01T18:21:01.44 0.6 undecidable manual S 79 20.7681 110 -0.32 63
IV.VAGA.HHZ. 2021-09-01T18:21:00.07 0.3 undecidable manual P 138 28.2495 105 0.1 97
IV.RNI2.HHZ. 2021-09-01T18:21:00.96 1.0 undecidable manual S 48 16.0728 115 0.69 28
IV.POFI.HHZ. 2021-09-01T18:20:59.66 0.3 undecidable manual P 297 27.5502 105 -0.18 96
IV.MIDA.HHZ. 2021-09-01T18:20:58.51 0.3 undecidable manual P 79 20.7681 110 -0.03 100
IV.MCI.EHZ. 2021-09-01T18:20:58.77 0.3 undecidable manual P 232 20.6682 110 0.26 95
IV.RNI2.HHZ. 2021-09-01T18:20:58.25 0.3 undecidable manual P 48 16.0728 115 0.58 88
IV.CERA.HHZ. 2021-09-01T18:20:56.25 0.6 undecidable manual S 138 1.1988 171 -0.47 63
IV.CERA.HHZ. 2021-09-01T18:20:55.44 0.3 undecidable manual P 138 1.1988 171 -0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HHE. ML:0.9 0.00006305 1.16 AML other m 2021-09-01T18:21:02.35
IV.RNI2.HHN. ML:1.1 0.00012935000000000003 0.2 AML other m 2021-09-01T18:21:03.90
IV.MIDA.HHN. ML:1.0 0.00006994999999999999 1.34 AML other m 2021-09-01T18:21:04.06
IV.VAGA.HHE. ML:0.8 0.000033799999999999995 1.32 AML other m 2021-09-01T18:21:05.95
IV.VVLD.HHN. ML:1.1 0.000039349999999999994 0.5 AML other m 2021-09-01T18:21:09.39
IV.VAGA.HHN. ML:1.2 0.00009355 0.44 AML other m 2021-09-01T18:21:10.28
IV.VVLD.HHE. ML:1.2 0.000049000000000000005 0.4 AML other m 2021-09-01T18:21:10.39
IV.RNI2.HHE. ML:0.7 0.0000479 0.62 AML other m 2021-09-01T18:21:10.57
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