Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 18-09-2020 and time 03:01:29 (Italy) in region 3 km SE Scapoli (IS)

A magnitude ML 1.1 earthquake occured in region: 3 km SE Scapoli (IS), on

  • 18-09-2020 01:01:29 (UTC)
  • 18-09-2020 03:01:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.5950, 14.0690 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
Scapoli IS 3 680 680
Colli a Volturno IS 3 1349 2029
Rocchetta a Volturno IS 4 1113 3142
Montaquila IS 5 2456 5598
Filignano IS 6 648 6246
Fornelli IS 6 1909 8155
Castel San Vincenzo IS 7 516 8671
Cerro al Volturno IS 7 1281 9952
Pizzone IS 9 329 10281
Macchia d'Isernia IS 9 1035 11316
Pozzilli IS 9 2380 13696
Acquaviva d'Isernia IS 11 425 14121
Acquafondata FR 11 263 14384
Viticuso FR 11 353 14737
San Biagio Saracinisco FR 12 349 15086
Monteroduni IS 12 2264 17350
Venafro IS 12 11280 28630
Conca Casale IS 12 200 28830
Isernia IS 13 21842 50672
Montenero Val Cocchiara IS 14 538 51210
Vallerotonda FR 14 1581 52791
Sant'Agapito IS 14 1496 54287
Rionero Sannitico IS 15 1118 55405
Forlì del Sannio IS 15 675 56080
Capriati a Volturno CE 15 1541 57621
Alfedena AQ 16 864 58485
Miranda IS 16 1047 59532
Longano IS 17 690 60222
Scontrone AQ 17 574 60796
Pettoranello del Molise IS 18 460 61256
Ciorlano CE 18 426 61682
Picinisco FR 18 1218 62900
Roccasicura IS 18 550 63450
Sant'Elia Fiumerapido FR 18 6166 69616
Pesche IS 18 1661 71277
San Vittore del Lazio FR 18 2636 73913
Fontegreca CE 18 811 74724
Cervaro FR 19 8109 82833
San Pietro Infine CE 19 944 83777
Sesto Campano IS 19 2388 86165
Villa Latina FR 19 1241 87406
Barrea AQ 19 726 88132
Gallo Matese CE 19 579 88711

Municipalities with at least 50000 inhabitants

An earthquake occurred to
62 Km NW of Caserta (76326 inhabitants)
70 Km N of Aversa (53047 inhabitants)
75 Km N of Giugliano in Campania (122974 inhabitants)
76 Km NW of Acerra (59573 inhabitants)
77 Km N of Afragola (65057 inhabitants)
78 Km N of Marano di Napoli (59874 inhabitants)
79 Km N of Casoria (77642 inhabitants)
79 Km NW of Benevento (60091 inhabitants)
83 Km N of Pozzuoli (81661 inhabitants)
85 Km S of Chieti (51815 inhabitants)
85 Km N of Napoli (974074 inhabitants)
89 Km N of Portici (55274 inhabitants)
90 Km N of Ercolano (53709 inhabitants)
93 Km N of Torre del Greco (86275 inhabitants)
97 Km NW of Avellino (54857 inhabitants)
98 Km S of Pescara (121014 inhabitants)
98 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 1.1 2020-09-18
01:01:29		 41.5947 14.0687 11 2021-02-26
14:56:20		 Bollettino Sismico Italiano INGV 87375211
Reviewed
Rev100 		ML 1.1 2020-09-18
01:01:29		 41.5977 14.0567 11 2020-09-18
01:08:35		 Sala Sismica INGV-Roma 82995351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-18 01:01:29 ± 0.09
Latitude 41.5947 ± 0.0063
Longitude 14.0687 ± 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 87375211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 717
Semi-minor axis of confidence ellipse (meter) 394
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 24
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.76173
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 87375211
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-22 10:10:47

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 12
Type of magnitude ML
Reference to an origin 82995351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-18 01:08:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVLD.HHZ. 2020-09-18T01:01:44.02 0.6 undecidable manual S 310 47.8188 91 -0.32 44
IV.INTR.HHZ. 2020-09-18T01:01:44.79 0.6 undecidable manual S 344 48.2184 91 0.36 43
IV.FAGN.HHZ. 2020-09-18T01:01:44.03 1.0 undecidable manual P 332 84.5487 90 0.48 20
IV.T0110.HHZ. 2020-09-18T01:01:42.18 0.3 undecidable manual P 341 74.4699 90 0.18 64
IV.MCI.EHE. 2020-09-18T01:01:38.87 0.6 undecidable manual S 242 24.1536 92 0.86 38
IT.OPI.HGE. 2020-09-18T01:01:38.83 0.3 undecidable manual S 316 28.2495 91 -0.27 68
IV.VAGA.HHZ. 2020-09-18T01:01:37.13 0.6 undecidable manual S 145 24.1536 92 -0.89 37
IV.VVLD.HHZ. 2020-09-18T01:01:37.58 0.1 undecidable manual P 310 47.8188 91 -0.32 87
IV.INTR.HHZ. 2020-09-18T01:01:37.72 0.3 undecidable manual P 344 48.2184 91 -0.23 67
IV.SGG.HHZ. 2020-09-18T01:01:36.28 0.3 undecidable manual P 132 34.6431 91 0.42 66
IV.RNI2.HHZ. 2020-09-18T01:01:35.67 0.3 undecidable manual S 30 13.875 103 0.38 68
IV.POFI.HNE. 2020-09-18T01:01:35.38 0.1 undecidable manual P 295 32.5452 91 -0.16 92
IV.MIDA.HHZ. 2020-09-18T01:01:35.58 0.3 undecidable manual S 71 16.2726 96 -0.32 70
IV.MCI.EHE. 2020-09-18T01:01:34.54 0.3 undecidable manual P 242 24.1536 92 0.29 69
IV.VAGA.HHZ. 2020-09-18T01:01:34.25 0.1 undecidable manual P 145 24.1536 92 0 97
IT.OPI.HGE. 2020-09-18T01:01:34.65 0.3 undecidable manual P 316 28.2495 91 -0.22 69
IV.RNI2.HHZ. 2020-09-18T01:01:33.06 0.3 undecidable manual P 30 13.875 103 0.39 69
IV.MIDA.HHZ. 2020-09-18T01:01:33.09 0.1 undecidable manual P 71 16.2726 96 0.06 98
IV.CERA.HNN. 2020-09-18T01:01:33.08 0.1 undecidable manual S 275 4.1958 154 -0.21 97
IV.CERA.HNN. 2020-09-18T01:01:31.56 0.1 undecidable manual P 275 4.1958 154 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HHE. ML:1.1 0.0000996 0.22 AML other m 2020-09-18T01:01:36.60
IV.MIDA.HHN. ML:1.1 0.0001032 1.22 AML other m 2020-09-18T01:01:37.71
IV.RNI2.HHN. ML:1.2 0.0001374 1 AML other m 2020-09-18T01:01:38.17
IV.RNI2.HNN. ML:1.2 0.0001452 1.36 AML other m 2020-09-18T01:01:38.18
IV.RNI2.HHE. ML:1.2 0.000165 0.46 AML other m 2020-09-18T01:01:38.19
IV.RNI2.HNE. ML:1.3 0.000187 0.48 AML other m 2020-09-18T01:01:38.19
IV.VAGA.HHE. ML:1.0 0.000052699999999999993 0.26 AML other m 2020-09-18T01:01:40.76
IV.VAGA.HHN. ML:1.2 0.00009185 1.02 AML other m 2020-09-18T01:01:43.61
IV.VVLD.HHN. ML:1.2 0.00004055 0.22 AML other m 2020-09-18T01:01:44.59
IV.VVLD.HHE. ML:1.2 0.000043950000000000004 0.54 AML other m 2020-09-18T01:01:44.97
IV.SGG.HHE. ML:0.9 0.000029200000000000005 1.38 AML other m 2020-09-18T01:01:45.98
IV.SGG.HHN. ML:0.8 0.00002705 0.38 AML other m 2020-09-18T01:01:47.38
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