Earthquake with magnitude of ML 0.7 on date 19-11-2021 and time 00:54:03 (Italy) in region 5 km E San Donato Val di Comino (FR)

A magnitude ML 0.7 earthquake occured in region: 5 km E San Donato Val di Comino (FR), on

  • 18-11-2021 23:54:03 (UTC)
  • 19-11-2021 00:54:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.73, 13.869 at 11 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 Donato Val di Comino FR 5 2107 2107
Opi AQ 6 420 2527
Settefrati FR 7 728 3255
Civitella Alfedena AQ 7 296 3551
Villetta Barrea AQ 7 653 4204
Picinisco FR 9 1218 5422
Gallinaro FR 10 1269 6691
Barrea AQ 11 726 7417
Pescasseroli AQ 11 2203 9620
Alvito FR 11 2713 12333
Villa Latina FR 13 1241 13574
Atina FR 13 4316 17890
San Biagio Saracinisco FR 14 349 18239
Alfedena AQ 14 864 19103
Scontrone AQ 14 574 19677
Vicalvi FR 15 783 20460
Posta Fibreno FR 15 1139 21599
Pizzone IS 16 329 21928
Campoli Appennino FR 16 1725 23653
Montenero Val Cocchiara IS 17 538 24191
Casalvieri FR 17 2698 26889
Casalattico FR 17 574 27463
Fontechiari FR 17 1303 28766
Belmonte Castello FR 17 739 29505
Pescosolido FR 18 1555 31060
Castel San Vincenzo IS 18 516 31576
Scanno AQ 19 1847 33423
Broccostella FR 20 2741 36164
Vallerotonda FR 20 1581 37745

Municipalities with at least 50000 inhabitants

An earthquake occurred to
73 Km SW of Chieti (51815 inhabitants)
79 Km SE of L'Aquila (69753 inhabitants)
82 Km NW of Caserta (76326 inhabitants)
85 Km E of Latina (125985 inhabitants)
87 Km SW of Pescara (121014 inhabitants)
89 Km NW of Aversa (53047 inhabitants)
90 Km S of Montesilvano (53738 inhabitants)
91 Km E of Velletri (53303 inhabitants)
92 Km E of Tivoli (56533 inhabitants)
93 Km NW of Giugliano in Campania (122974 inhabitants)
96 Km N of Marano di Napoli (59874 inhabitants)
97 Km NW of Acerra (59573 inhabitants)
97 Km NW of Afragola (65057 inhabitants)
98 Km NW of Casoria (77642 inhabitants)
99 Km E of Guidonia Montecelio (88673 inhabitants)
100 Km N of Pozzuoli (81661 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.7 2021-11-18
23:54:03
41.7302 13.8688 11 2021-11-18
23:59:43
Sala Sismica INGV-Roma 97573031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-18 23:54:03 ± 0.06
Latitude 41.7302 ± 0.0036
Longitude 13.8688 ± 0.0048
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97573031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 420
Semi-minor axis of confidence ellipse (meter) 355
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 196
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
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) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.05396
Epicentral distance of station farthest from the epicenter (degree) 0.3939
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:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 97573031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-18 23:59:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2021-11-18T23:54:18.30 1.0 undecidable manual S 36 0.3939 50 0.46 22
IV.INTR.HHZ. 2021-11-18T23:54:14.29 0.1 undecidable manual S 5 0.2824 50 -0.25 89
IV.LRP.EHZ. 2021-11-18T23:54:12.86 0.1 undecidable manual S 249 0.2266 50 -0.02 94
IV.VVLD.HHZ. 2021-11-18T23:54:12.88 0.1 undecidable manual S 307 0.2302 50 -0.11 93
IV.CERA.HHZ. 2021-11-18T23:54:11.16 0.1 undecidable manual S 140 0.1727 50 -0.15 93
IV.LPEL.HHZ. 2021-11-18T23:54:11.76 0.1 undecidable manual P 36 0.3939 50 -0.11 90
IV.POFI.HHZ. 2021-11-18T23:54:09.39 0.1 undecidable manual S 264 0.1178 130 -0.26 95
IV.INTR.HHZ. 2021-11-18T23:54:09.96 0.1 undecidable manual P 5 0.2824 50 0 95
IV.LRP.EHZ. 2021-11-18T23:54:09.10 0.1 undecidable manual P 249 0.2266 50 0.1 97
IV.VVLD.HHZ. 2021-11-18T23:54:09.14 0.1 negative manual P 307 0.2302 50 0.07 97
IT.OPI.HGZ. 2021-11-18T23:54:08.01 0.1 undecidable manual S 328 0.054 151 -0.07 100
IV.CERA.HHZ. 2021-11-18T23:54:08.17 0.1 undecidable manual P 140 0.1727 50 0.08 98
IV.RNI2.HNZ. 2021-11-18T23:54:08.93 0.1 undecidable manual P 97 0.2131 50 0.15 96
IV.POFI.HHZ. 2021-11-18T23:54:07.42 0.1 negative manual P 264 0.1178 130 0.28 93
IT.OPI.HGZ. 2021-11-18T23:54:06.54 0.1 undecidable manual P 328 0.054 151 0.31 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.POFI.HHE. ML:0.5 3.45E-5 0.7 AML other m 2021-11-18T23:54:10.24
IV.POFI.HHN. ML:0.5 3.595E-5 0.12 AML other m 2021-11-18T23:54:10.65
IV.VVLD.HHN. ML:1 5.715E-5 0.4 AML other m 2021-11-18T23:54:13.36
IV.VVLD.HHE. ML:0.9 4.43E-5 0.46 AML other m 2021-11-18T23:54:15.43
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