Earthquake with magnitude of ML 1.1 on date 19-09-2020 and time 08:20:58 (Italy) in region 2 km SW Colli a Volturno (IS)

A magnitude ML 1.1 earthquake occured in region: 2 km SW Colli a Volturno (IS), on

  • 19-09-2020 06:20:58 (UTC)
  • 19-09-2020 08:20:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.58, 14.08 at 7 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Colli a Volturno IS 2 1349 1349
Montaquila IS 3 2456 3805
Scapoli IS 4 680 4485
Rocchetta a Volturno IS 4 1113 5598
Filignano IS 5 648 6246
Fornelli IS 5 1909 8155
Macchia d'Isernia IS 7 1035 9190
Cerro al Volturno IS 8 1281 10471
Castel San Vincenzo IS 8 516 10987
Pozzilli IS 8 2380 13367
Pizzone IS 10 329 13696
Monteroduni IS 10 2264 15960
Acquaviva d'Isernia IS 11 425 16385
Venafro IS 11 11280 27665
Viticuso FR 12 353 28018
Isernia IS 12 21842 49860
Conca Casale IS 12 200 50060
Acquafondata FR 12 263 50323
Sant'Agapito IS 12 1496 51819
San Biagio Saracinisco FR 13 349 52168
Capriati a Volturno CE 14 1541 53709
Montenero Val Cocchiara IS 15 538 54247
Vallerotonda FR 15 1581 55828
Forlì del Sannio IS 15 675 56503
Rionero Sannitico IS 15 1118 57621
Miranda IS 15 1047 58668
Longano IS 15 690 59358
Pettoranello del Molise IS 16 460 59818
Ciorlano CE 16 426 60244
Fontegreca CE 17 811 61055
Pesche IS 17 1661 62716
Alfedena AQ 17 864 63580
Roccasicura IS 18 550 64130
Gallo Matese CE 18 579 64709
San Vittore del Lazio FR 18 2636 67345
Sesto Campano IS 18 2388 69733
Scontrone AQ 18 574 70307
Castelpizzuto IS 19 155 70462
San Pietro Infine CE 19 944 71406
Cervaro FR 19 8109 79515
Sant'Elia Fiumerapido FR 19 6166 85681
Picinisco FR 19 1218 86899
Prata Sannita CE 20 1502 88401

Municipalities with at least 50000 inhabitants

An earthquake occurred to
60 Km NW of Caserta (76326 inhabitants)
69 Km N of Aversa (53047 inhabitants)
74 Km N of Giugliano in Campania (122974 inhabitants)
75 Km NW of Acerra (59573 inhabitants)
76 Km N of Afragola (65057 inhabitants)
77 Km N of Marano di Napoli (59874 inhabitants)
77 Km NW of Benevento (60091 inhabitants)
77 Km N of Casoria (77642 inhabitants)
82 Km N of Pozzuoli (81661 inhabitants)
84 Km N of Napoli (974074 inhabitants)
86 Km S of Chieti (51815 inhabitants)
88 Km N of Portici (55274 inhabitants)
89 Km N of Ercolano (53709 inhabitants)
92 Km N of Torre del Greco (86275 inhabitants)
95 Km NW of Avellino (54857 inhabitants)
99 Km S of Pescara (121014 inhabitants)
99 Km E of Latina (125985 inhabitants)
100 Km NW of Scafati (50787 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.1 2020-09-19
06:20:58
41.59 14.08 7 2020-09-19
06:27:02
Sala Sismica INGV-Roma 83020061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-19 06:20:58 ± 0.35
Latitude 41.59 ± 0.01
Longitude 14.08 ± 0.01
Depth (km) 7 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83020061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 893
Semi-minor axis of confidence ellipse (meter) 544
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 151
Circular confidence region, given by single value of horizontal uncertainty (meter) 890
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
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) 0.42
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.22393
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 83020061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-19 06:27:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CADC.HNZ. 2020-09-19T06:22:47.41 3.0 undecidable manual Sn -9.99 0
GU.CARD.HHZ. 2020-09-19T06:22:34.61 3.0 undecidable manual Sg 7.73 0
IV.BRIS.HHZ. 2020-09-19T06:22:11.67 3.0 undecidable manual Sn -9.99 0
IV.PE3.EHZ. 2020-09-19T06:22:09.70 3.0 undecidable manual Sg 0.21 0
IV.EVRN.HHZ. 2020-09-19T06:21:57.37 3.0 undecidable manual Sn -3.11 0
IV.ROSPO.HHZ. 2020-09-19T06:21:50.89 3.0 undecidable manual Sg 4.15 0
IV.MMN.HHZ. 2020-09-19T06:21:48.78 3.0 undecidable manual Sn 4.72 0
GU.RNCA.HHZ. 2020-09-19T06:21:47.85 3.0 positive manual Pn -1.37 0
IV.NDIM.HHZ. 2020-09-19T06:21:45.91 3.0 positive manual Pn 0.26 0
IV.GAVE.EHZ. 2020-09-19T06:21:42.44 3.0 undecidable manual Sg -2.29 0
GU.GSCL.HHZ. 2020-09-19T06:21:42.40 3.0 positive manual Pg 2.59 0
IV.PZUN.HHZ. 2020-09-19T06:21:40.38 3.0 undecidable manual Sn -0.24 0
GU.GRAM.HHZ. 2020-09-19T06:21:34.85 3.0 undecidable manual Pn -8.89 0
IV.APEC.HHZ. 2020-09-19T06:21:32.09 3.0 negative manual Pg 7.48 0
IV.SENI.HNZ. 2020-09-19T06:21:27.87 3.0 positive manual Pg 1.31 0
IV.SRES.HHZ. 2020-09-19T06:21:27.61 3.0 undecidable manual Sn -6.44 0
IV.SGG.HHZ. 2020-09-19T06:21:22.12 3.0 undecidable manual Sn -2.43 0
IV.CELI.HHZ. 2020-09-19T06:21:19.89 3.0 undecidable manual Pg 0.84 0
IV.NOV.HHZ. 2020-09-19T06:21:15.70 3.0 negative manual Pn -1.92 0
IV.MTGR.HHZ. 2020-09-19T06:21:14.17 3.0 undecidable manual Pg 3.25 0
IV.CMPR.HHZ. 2020-09-19T06:21:11.48 3.0 undecidable manual Pg 6.98 0
IV.IFIL.HHZ. 2020-09-19T06:21:08.08 3.0 positive manual Pg -0.01 0
IV.MCI.EHE. 2020-09-19T06:21:07.54 0.1 undecidable manual S 245 0.2239 105 -0.22 95
IV.VAGA.HHZ. 2020-09-19T06:21:07.35 0.1 undecidable manual S 147 0.2032 107 0.36 93
IV.SENA.HHZ. 2020-09-19T06:21:05.63 3.0 undecidable manual Pg -9.01 0
IV.MCI.EHE. 2020-09-19T06:21:04.67 0.1 undecidable manual P 245 0.2239 105 0.69 83
IV.RNI2.HHZ. 2020-09-19T06:21:04.76 0.1 undecidable manual S 23 0.1286 115 0.47 92
IV.OPI.HGZ. 2020-09-19T06:21:04.68 3.0 undecidable manual P 0
IV.MIDA.HHZ. 2020-09-19T06:21:04.60 0.1 undecidable manual S 66 0.1385 114 -0.05 100
IV.MCRV.HHZ. 2020-09-19T06:21:03.69 3.0 undecidable manual Pg -0.42 0
IV.VAGA.HHZ. 2020-09-19T06:21:03.17 0.1 undecidable manual P 147 0.2032 107 -0.37 92
IV.SRES.HHZ. 2020-09-19T06:21:02.45 3.0 positive manual P -4.06 0
IV.RNI2.HHZ. 2020-09-19T06:21:01.76 0.1 undecidable manual P 23 0.1286 115 -0.21 97
IV.MIDA.HHZ. 2020-09-19T06:21:01.89 0.1 undecidable manual P 66 0.1385 114 -0.29 95
IV.CERA.HHZ. 2020-09-19T06:21:01.85 0.3 undecidable manual S 284 0.0513 140 -0.03 76
IV.CERA.HHZ. 2020-09-19T06:21:00.35 0.1 negative manual P 284 0.0513 140 -0.24 98
IV.VIVA.HHZ. 2020-09-19T06:20:59.45 3.0 negative manual P -0.16 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HHN. ML:1.2 0.0002585 1.38 AML other m 2020-09-19T06:21:02.26
IV.CERA.HHE. ML:1 0.0001785 1.36 AML other m 2020-09-19T06:21:02.30
IV.MIDA.HHN. ML:1.1 0.0001179 0.86 AML other m 2020-09-19T06:21:05.87
IV.MIDA.HHE. ML:1 0.0001126 0.28 AML other m 2020-09-19T06:21:05.67
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download