Earthquake with magnitude of ML 1.3 on date 22-12-2023 and time 02:21:38 (Italy) in region 3 km N Sora (FR)

A magnitude ML 1.3 earthquake occured in region: 3 km N Sora (FR), on

  • 22-12-2023 01:21:38 (UTC)
  • 22-12-2023 02:21:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7480, 13.6160 at 15 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
Sora FR 3 26144 26144
Pescosolido FR 3 1555 27699
Broccostella FR 5 2741 30440
Campoli Appennino FR 5 1725 32165
Balsorano AQ 8 3569 35734
Isola del Liri FR 8 11715 47449
Posta Fibreno FR 9 1139 48588
Castelliri FR 9 3454 52042
Fontechiari FR 10 1303 53345
Vicalvi FR 11 783 54128
Arpino FR 11 7262 61390
San Vincenzo Valle Roveto AQ 12 2347 63737
Alvito FR 12 2713 66450
Villavallelonga AQ 13 919 67369
Monte San Giovanni Campano FR 15 12929 80298
Casalvieri FR 15 2698 82996
Collelongo AQ 16 1233 84229
Fontana Liri FR 16 2953 87182
Pescasseroli AQ 16 2203 89385
Santopadre FR 16 1357 90742
Boville Ernica FR 17 8737 99479
Casalattico FR 17 574 100053
San Donato Val di Comino FR 17 2107 102160
Veroli FR 18 20560 122720
Rocca d'Arce FR 18 959 123679
Arce FR 18 5756 129435
Gallinaro FR 18 1269 130704
Opi AQ 18 420 131124
Morino AQ 19 1448 132572
Strangolagalli FR 19 2491 135063
Civita d'Antino AQ 20 979 136042

Municipalities with at least 50000 inhabitants

An earthquake occurred to
67 Km E of Latina (125985 inhabitants)
70 Km S of L'Aquila (69753 inhabitants)
70 Km E of Velletri (53303 inhabitants)
72 Km E of Tivoli (56533 inhabitants)
79 Km E of Guidonia Montecelio (88673 inhabitants)
81 Km SW of Chieti (51815 inhabitants)
82 Km E of Aprilia (73446 inhabitants)
89 Km E of Anzio (54211 inhabitants)
93 Km E of Pomezia (62966 inhabitants)
94 Km SW of Pescara (121014 inhabitants)
95 Km E of Roma (2864731 inhabitants)
96 Km NW of Caserta (76326 inhabitants)
96 Km SW of Montesilvano (53738 inhabitants)
99 Km NW of Aversa (53047 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
Reviewed
Rev100
ML 1.3 2023-12-22
01:21:38
41.7478 13.6163 15 2023-12-22
02:06:59
Sala Sismica INGV-Roma 124192721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-22 01:21:38 ± 0.08
Latitude 41.7478 ± 0.0027
Longitude 13.6163 ± 0.0048
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124192721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 324
Semi-minor axis of confidence ellipse (meter) 323
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 245
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.07734
Epicentral distance of station farthest from the epicenter (degree) 0.33994
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 124192721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-22 02:06:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GUAR.HHZ. 2023-12-22T01:21:48.23 0.6 undecidable manual S 282 25.6521 105 -0.07 49
IV.INTR.HHZ. 2023-12-22T01:21:46.04 0.3 positive manual P 39 37.7289 98 -0.09 72
IV.VVLD.HHZ. 2023-12-22T01:21:45.30 0.6 undecidable manual S 2 13.5753 127 -0.05 51
IV.POFI.HHZ. 2023-12-22T01:21:44.34 0.6 undecidable manual S 113 8.5803 143 -0.07 51
IV.GUAR.HHZ. 2023-12-22T01:21:44.28 0.6 negative manual P 282 25.6521 105 -0.03 50
IV.LRP.EHZ. 2023-12-22T01:21:44.77 0.6 undecidable manual S 192 11.4774 133 -0.15 50
IV.LRP.EHZ. 2023-12-22T01:21:42.47 0.3 positive manual P 192 11.4774 133 0.12 75
IV.VVLD.HHZ. 2023-12-22T01:21:42.71 0.1 negative manual P 2 13.5753 127 0.11 100
IV.POFI.HHZ. 2023-12-22T01:21:42.25 1.0 undecidable manual P 113 8.5803 143 0.19 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LRP.EHE. ML:1.4 0.000258 0.16 AML other m 2023-12-22T01:21:45.14
IV.LRP.EHN. ML:0.8 0.000062 0.66 AML other m 2023-12-22T01:21:45.46
IV.VVLD.HHE. ML:1.2 0.000147 0.52 AML other m 2023-12-22T01:21:45.53
IV.VVLD.HHN. ML:1.5 0.0002465 0.3 AML other m 2023-12-22T01:21:45.45
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