Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 09-07-2021 and time 02:13:11 (Italy) in region 4 km W Scapoli (IS)

A magnitude ML 0.8 earthquake occured in region: 4 km W Scapoli (IS), on

  • 09-07-2021 00:13:11 (UTC)
  • 09-07-2021 02:13:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6000, 14.0110 at 8 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
Rocchetta a Volturno IS 7 1113 1793
San Biagio Saracinisco FR 7 349 2142
Filignano IS 7 648 2790
Castel San Vincenzo IS 8 516 3306
Colli a Volturno IS 8 1349 4655
Pizzone IS 8 329 4984
Acquafondata FR 8 263 5247
Viticuso FR 9 353 5600
Montaquila IS 10 2456 8056
Vallerotonda FR 10 1581 9637
Cerro al Volturno IS 10 1281 10918
Pozzilli IS 11 2380 13298
Fornelli IS 11 1909 15207
Conca Casale IS 12 200 15407
Venafro IS 13 11280 26687
Picinisco FR 13 1218 27905
Sant'Elia Fiumerapido FR 14 6166 34071
Macchia d'Isernia IS 14 1035 35106
Montenero Val Cocchiara IS 14 538 35644
Acquaviva d'Isernia IS 14 425 36069
Villa Latina FR 15 1241 37310
Alfedena AQ 15 864 38174
Settefrati FR 16 728 38902
Cervaro FR 16 8109 47011
Monteroduni IS 16 2264 49275
San Vittore del Lazio FR 16 2636 51911
Scontrone AQ 17 574 52485
Rionero Sannitico IS 17 1118 53603
Belmonte Castello FR 17 739 54342
Atina FR 18 4316 58658
San Pietro Infine CE 18 944 59602
Barrea AQ 18 726 60328
Forlì del Sannio IS 18 675 61003
Isernia IS 18 21842 82845
Capriati a Volturno CE 18 1541 84386
Sant'Agapito IS 19 1496 85882
Gallinaro FR 19 1269 87151
Cassino FR 19 36142 123293
Civitella Alfedena AQ 19 296 123589
Terelle FR 20 422 124011

Municipalities with at least 50000 inhabitants

An earthquake occurred to
64 Km NW of Caserta (76326 inhabitants)
72 Km N of Aversa (53047 inhabitants)
76 Km N of Giugliano in Campania (122974 inhabitants)
79 Km NW of Acerra (59573 inhabitants)
79 Km NW of Afragola (65057 inhabitants)
79 Km N of Marano di Napoli (59874 inhabitants)
81 Km N of Casoria (77642 inhabitants)
83 Km NW of Benevento (60091 inhabitants)
84 Km N of Pozzuoli (81661 inhabitants)
85 Km S of Chieti (51815 inhabitants)
87 Km N of Napoli (974074 inhabitants)
91 Km NW of Portici (55274 inhabitants)
92 Km NW of Ercolano (53709 inhabitants)
93 Km E of Latina (125985 inhabitants)
95 Km NW of Torre del Greco (86275 inhabitants)
98 Km SE of L'Aquila (69753 inhabitants)
98 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 0.8 2021-07-09
00:13:11		 41.6 14.0112 8 2021-12-29
11:12:10		 Bollettino Sismico Italiano INGV 92650281
Reviewed
Rev100 		ML 0.7 2021-07-09
00:13:12		 41.5823 14.0417 5 2021-07-09
00:21:09		 Sala Sismica INGV-Roma 92454971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-09 00:13:11 ± 0.16
Latitude 41.6000 ± 0.0117
Longitude 14.0112 ± 0.0108
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 92650281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1343
Semi-minor axis of confidence ellipse (meter) 737
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 154
Circular confidence region, given by single value of horizontal uncertainty (meter) 1340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00630
Epicentral distance of station farthest from the epicenter (degree) 0.41908
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:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 92454971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-09 00:21:09

ML:0.8

Field Value
Value 0.8
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 92650281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-01 15:53:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVLD.HHZ. 2021-07-09T00:13:26.05 0.6 undecidable manual S 313 43.9227 50 -0.25 46
IV.INTR.HHN. 2021-07-09T00:13:20.81 0.3 undecidable manual P 349 46.5201 50 0.36 67
IV.MCI.EHE. 2021-07-09T00:13:19.75 0.6 undecidable manual S 234 20.3685 112 0.61 44
IV.VVLD.HHZ. 2021-07-09T00:13:19.61 0.1 undecidable manual P 313 43.9227 50 -0.44 89
IV.MIDA.HHZ. 2021-07-09T00:13:19.10 0.6 undecidable manual S 77 20.6682 112 -0.12 49
IV.RNI2.HHZ. 2021-07-09T00:13:18.40 0.6 undecidable manual S 46 16.3725 117 0.54 45
IV.VAGA.HHZ. 2021-07-09T00:13:17.02 0.3 undecidable manual P 138 27.6501 107 -0.26 71
IV.POFI.HNE. 2021-07-09T00:13:17.18 0.3 undecidable manual P 298 27.9498 106 -0.17 72
IV.MCI.EHE. 2021-07-09T00:13:16.39 0.3 undecidable manual P 234 20.3685 112 0.48 69
IV.MIDA.HHZ. 2021-07-09T00:13:15.91 0.1 undecidable manual P 77 20.6682 112 -0.05 100
IV.RNI2.HHZ. 2021-07-09T00:13:15.73 0.3 undecidable manual P 46 16.3725 117 0.55 67
IV.CERA.HHZ. 2021-07-09T00:13:13.78 0.6 undecidable manual S 112 0.6993 175 -0.59 45
IV.CERA.HHZ. 2021-07-09T00:13:12.89 0.1 undecidable manual P 112 0.6993 175 -0.27 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HHE. ML:0.8 0.00004339999999999999 1.12 AML other m 2021-07-09T00:13:19.85
IV.MIDA.HHN. ML:0.8 0.0000472 1.58 AML other m 2021-07-09T00:13:20.75
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