Earthquake with magnitude of ML 1.0 on date 15-09-2021 and time 07:22:06 (Italy) in region 5 km E San Biagio Saracinisco (FR)

A magnitude ML 1.0 earthquake occured in region: 5 km E San Biagio Saracinisco (FR), on

  • 15-09-2021 05:22:06 (UTC)
  • 15-09-2021 07:22:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.616, 13.993 at 0 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
San Biagio Saracinisco FR 5 349 349
Scapoli IS 6 680 1029
Pizzone IS 7 329 1358
Castel San Vincenzo IS 7 516 1874
Rocchetta a Volturno IS 8 1113 2987
Acquafondata FR 9 263 3250
Colli a Volturno IS 9 1349 4599
Filignano IS 9 648 5247
Vallerotonda FR 10 1581 6828
Cerro al Volturno IS 10 1281 8109
Viticuso FR 10 353 8462
Picinisco FR 11 1218 9680
Montaquila IS 12 2456 12136
Fornelli IS 12 1909 14045
Montenero Val Cocchiara IS 13 538 14583
Villa Latina FR 13 1241 15824
Pozzilli IS 13 2380 18204
Settefrati FR 13 728 18932
Sant'Elia Fiumerapido FR 14 6166 25098
Conca Casale IS 14 200 25298
Alfedena AQ 14 864 26162
Acquaviva d'Isernia IS 15 425 26587
Venafro IS 15 11280 37867
Scontrone AQ 15 574 38441
Belmonte Castello FR 16 739 39180
Macchia d'Isernia IS 16 1035 40215
Barrea AQ 16 726 40941
Atina FR 16 4316 45257
Rionero Sannitico IS 16 1118 46375
Cervaro FR 17 8109 54484
Gallinaro FR 17 1269 55753
Civitella Alfedena AQ 17 296 56049
San Vittore del Lazio FR 17 2636 58685
Forlì del Sannio IS 18 675 59360
San Donato Val di Comino FR 18 2107 61467
Monteroduni IS 18 2264 63731
Villetta Barrea AQ 19 653 64384
Terelle FR 19 422 64806
San Pietro Infine CE 19 944 65750
Cassino FR 19 36142 101892
Isernia IS 20 21842 123734

Municipalities with at least 50000 inhabitants

An earthquake occurred to
67 Km NW of Caserta (76326 inhabitants)
74 Km N of Aversa (53047 inhabitants)
78 Km N of Giugliano in Campania (122974 inhabitants)
81 Km NW of Acerra (59573 inhabitants)
81 Km N of Marano di Napoli (59874 inhabitants)
82 Km NW of Afragola (65057 inhabitants)
83 Km NW of Casoria (77642 inhabitants)
83 Km S of Chieti (51815 inhabitants)
85 Km NW of Benevento (60091 inhabitants)
86 Km N of Pozzuoli (81661 inhabitants)
89 Km N of Napoli (974074 inhabitants)
92 Km E of Latina (125985 inhabitants)
93 Km NW of Portici (55274 inhabitants)
94 Km NW of Ercolano (53709 inhabitants)
95 Km SE of L'Aquila (69753 inhabitants)
96 Km S of Pescara (121014 inhabitants)
97 Km NW of Torre del Greco (86275 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 1.0 2021-09-15
05:22:06
41.6162 13.9933 0 2021-09-15
05:42:06
Sala Sismica INGV-Roma 95451741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-15 05:22:06 ± 0.14
Latitude 41.6162 ± 0.0063
Longitude 13.9933 ± 0.0084
Depth (km) 0 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95451741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 780
Semi-minor axis of confidence ellipse (meter) 670
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 35
Circular confidence region, given by single value of horizontal uncertainty (meter) 780
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.02608
Epicentral distance of station farthest from the epicenter (degree) 0.4011
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 95451741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-15 05:42:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.INTR.HHZ. 2021-09-15T05:22:22.51 0.3 undecidable manual S 351 0.4011 90 0.47 65
IV.VVLD.HHZ. 2021-09-15T05:22:20.66 0.6 undecidable manual S 313 0.375 90 -0.37 44
IV.INTR.HHZ. 2021-09-15T05:22:15.24 0.3 undecidable manual P 351 0.4011 90 -0.27 68
IV.MCI.EHZ. 2021-09-15T05:22:14.13 0.3 undecidable manual S 227 0.1835 90 0.45 68
IV.VVLD.HHZ. 2021-09-15T05:22:14.13 0.3 undecidable manual P 313 0.375 90 -0.8 57
IV.MIDA.HHZ. 2021-09-15T05:22:13.94 0.6 undecidable manual S 82 0.1961 90 -0.23 47
IV.RNI2.HHZ. 2021-09-15T05:22:12.58 0.6 undecidable manual S 54 0.1475 91 0.31 47
IV.VAGA.HNZ. 2021-09-15T05:22:12.70 0.3 undecidable manual P 138 0.2698 90 0.1 72
IV.POFI.HNE. 2021-09-15T05:22:11.82 0.3 undecidable manual P 296 0.2329 90 0.03 74
IV.MCI.EHZ. 2021-09-15T05:22:10.79 0.3 undecidable manual P 227 0.1835 90 0.1 73
IV.MIDA.HHZ. 2021-09-15T05:22:10.28 0.3 undecidable manual P 82 0.1961 90 -0.69 62
IV.RNI2.HHZ. 2021-09-15T05:22:10.66 0.1 undecidable manual P 54 0.1475 91 0.78 81
IV.CERA.HHZ. 2021-09-15T05:22:07.05 0.1 undecidable manual P 134 0.0261 93 -0.13 100
IV.CERA.HHZ. 2021-09-15T05:22:07.52 0.3 undecidable manual S 134 0.0261 93 -0.09 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HHN. ML:0 0.00405 0.36 AML other m 2021-09-15T05:22:08.18
IV.CERA.HNN. ML:0 0.003825 0.36 AML other m 2021-09-15T05:22:08.18
IV.CERA.HHE. ML:0 0.001765 0.24 AML other m 2021-09-15T05:22:08.29
IV.CERA.HNE. ML:0 0.00184 0.18 AML other m 2021-09-15T05:22:08.74
IV.MIDA.HHN. ML:1 7.54E-5 1.44 AML other m 2021-09-15T05:22:14.92
IV.MIDA.HNE. ML:1 7.13E-5 0.26 AML other m 2021-09-15T05:22:14.93
IV.MIDA.HNN. ML:1.7 0.000363 1.42 AML other m 2021-09-15T05:22:15.08
IV.RNI2.HHN. ML:1 0.000112 0.78 AML other m 2021-09-15T05:22:15.54
IV.RNI2.HHE. ML:0.7 5.71E-5 0.78 AML other m 2021-09-15T05:22:17.78
IV.MIDA.HHE. ML:0.9 6.61E-5 1.24 AML other m 2021-09-15T05:22:17.66
IV.VVLD.HHE. ML:1.1 4.1E-5 0.46 AML other m 2021-09-15T05:22:22.01
IV.VVLD.HHN. ML:1.1 4.06E-5 0.24 AML other m 2021-09-15T05:22:22.39
IV.INTR.HHN. ML:1.1 4.065E-5 0.9 AML other m 2021-09-15T05:22:25.51
IV.INTR.HHE. ML:1 3.2E-5 0.44 AML other m 2021-09-15T05:22:25.48
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