Earthquake (quarry blast) with magnitude of ML 1.2 on date 23-03-2023 and time 10:30:15 (UTC) in region 2 km SW Atina (FR)

A magnitude ML 1.2 (quarry blast) earthquake occured in region: 2 km SW Atina (FR), on

  • 23-03-2023 10:30:15 (UTC)
  • 23-03-2023 11:30:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.6060, 13.7820 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Atina FR 2 4316 4316
Belmonte Castello FR 4 739 5055
Villa Latina FR 5 1241 6296
Casalattico FR 5 574 6870
Terelle FR 6 422 7292
Gallinaro FR 6 1269 8561
Casalvieri FR 6 2698 11259
Picinisco FR 9 1218 12477
Settefrati FR 9 728 13205
Colle San Magno FR 10 699 13904
Alvito FR 10 2713 16617
Sant'Elia Fiumerapido FR 10 6166 22783
Vicalvi FR 10 783 23566
Villa Santa Lucia FR 11 2632 26198
Castrocielo FR 11 3965 30163
Roccasecca FR 11 7365 37528
Fontechiari FR 11 1303 38831
San Donato Val di Comino FR 12 2107 40938
Posta Fibreno FR 12 1139 42077
Santopadre FR 12 1357 43434
San Biagio Saracinisco FR 12 349 43783
Piedimonte San Germano FR 12 6535 50318
Vallerotonda FR 12 1581 51899
Cassino FR 13 36142 88041
Aquino FR 14 5370 93411
Arpino FR 15 7262 100673
Colfelice FR 16 1932 102605
Acquafondata FR 16 263 102868
Broccostella FR 16 2741 105609
Rocca d'Arce FR 17 959 106568
Campoli Appennino FR 17 1725 108293
Cervaro FR 17 8109 116402
Arce FR 17 5756 122158
Viticuso FR 18 353 122511
Pignataro Interamna FR 19 2595 125106
Sora FR 19 26144 151250
Isola del Liri FR 19 11715 162965
Pontecorvo FR 19 13242 176207
Pescosolido FR 19 1555 177762
Fontana Liri FR 19 2953 180715
Opi AQ 20 420 181135

Municipalities with at least 50000 inhabitants

An earthquake occurred to
75 Km E of Latina (125985 inhabitants)
75 Km NW of Caserta (76326 inhabitants)
79 Km NW of Aversa (53047 inhabitants)
83 Km NW of Giugliano in Campania (122974 inhabitants)
84 Km E of Velletri (53303 inhabitants)
86 Km NW of Marano di Napoli (59874 inhabitants)
88 Km NW of Afragola (65057 inhabitants)
88 Km N of Pozzuoli (81661 inhabitants)
88 Km NW of Acerra (59573 inhabitants)
89 Km NW of Casoria (77642 inhabitants)
89 Km SE of L'Aquila (69753 inhabitants)
89 Km SW of Chieti (51815 inhabitants)
91 Km E of Tivoli (56533 inhabitants)
94 Km NW of Napoli (974074 inhabitants)
94 Km E of Aprilia (73446 inhabitants)
98 Km E of Anzio (54211 inhabitants)
98 Km E of Guidonia Montecelio (88673 inhabitants)
99 Km NW of Benevento (60091 inhabitants)
99 Km NW of Portici (55274 inhabitants)
100 Km NW of Ercolano (53709 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 1.2 2023-03-23
10:30:15
41.6062 13.7817 1 2024-03-01
17:18:19
Bollettino Sismico Italiano INGV 124204551
Reviewed
Rev100
ML 1.4 2023-03-23
10:30:13
41.548 13.746 22 2023-03-23
10:38:21
Sala Sismica INGV-Roma 115663951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-23 10:30:15 ± 0.2
Latitude 41.6062 ± 0.0126
Longitude 13.7817 ± 0.0156
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 124204551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1420
Semi-minor axis of confidence ellipse (meter) 1290
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 30
Circular confidence region, given by single value of horizontal uncertainty (meter) 1420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41549
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 115663951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-23 10:38:21

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 124204551
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-22 13:23:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MILZ.HHZ. 2023-03-23T10:31:55.67 3.0 undecidable manual Sg 25.030001 0
IV.MSRU.HHZ. 2023-03-23T10:31:48.67 3.0 undecidable manual Sg 17.43 0
TV.SU26.HHZ. 2023-03-23T10:31:39.18 3.0 undecidable manual Pg 23.620001 0
GU.MGRO.HHZ. 2023-03-23T10:31:38.42 3.0 negative manual Pg 21.17 0
IV.OSSC.HHZ. 2023-03-23T10:31:32.02 3.0 undecidable manual Sg 6.85 0
IV.IMOL.HNZ. 2023-03-23T10:31:30.64 3.0 undecidable manual Sn -0.19 0
IV.ZCCA.HHZ. 2023-03-23T10:31:11.92 3.0 undecidable manual Pg 18.91 0
GU.CARD.HHZ. 2023-03-23T10:30:52.37 3.0 undecidable manual Pn -1.85 0
IV.FDMO.HHZ. 2023-03-23T10:30:28.08 3.0 undecidable manual Pn -0.05 0
IV.RCAV.EHZ. 2023-03-23T10:30:26.10 3.0 undecidable manual Pg 1.92 0
IV.INTR.HHE. 2023-03-23T10:30:23.73 0.3 undecidable manual P 13 46.1205 91 -0.7 62
IV.RNI2.HNE. 2023-03-23T10:30:21.76 0.3 undecidable manual P 71 32.5452 91 0.04 75
IV.VVLD.HHZ. 2023-03-23T10:30:20.96 0.3 undecidable manual P 336 32.0457 91 -0.65 64
IV.VCEL.EHZ. 2023-03-23T10:30:19.79 3.0 positive manual P -9.99 0
IT.OPI.HGZ. 2023-03-23T10:30:19.97 0.3 undecidable manual P 12 19.2696 91 0.91 59
IV.CERA.HHZ. 2023-03-23T10:30:19.02 0.3 undecidable manual P 93 19.6692 91 -0.11 76
IV.LIK.EHZ.01 2023-03-23T10:30:19.25 0.6 undecidable manual P 237 21.867 91 -0.33 48
IV.POFI.HHZ. 2023-03-23T10:30:18.26 0.3 undecidable manual P 335 13.6752 92 0.34 73
IV.LRP.EHZ. 2023-03-23T10:30:18.75 0.1 undecidable manual P 286 16.7721 92 0.19 100
IV.MCI.EHZ. 2023-03-23T10:30:17.93 0.3 undecidable manual P 168 13.0758 92 0.13 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCI.EHE. ML:1.8 0.0009 1.06 AML other m 2023-03-23T10:30:21.08
IV.POFI.HHN. ML:0.8 0.00008315 0.3 AML other m 2023-03-23T10:30:21.79
IV.LRP.EHN. ML:0.8 0.00007085 0.4 AML other m 2023-03-23T10:30:22.95
IV.LRP.EHE. ML:1.4 0.000253 0.32 AML other m 2023-03-23T10:30:23.09
IV.CERA.HHE. ML:1.3 0.0001735 0.44 AML other m 2023-03-23T10:30:23.77
IV.POFI.HHE. ML:0.9 0.00010445 0.4 AML other m 2023-03-23T10:30:23.41
IV.MCI.EHN. ML:1.6 0.0005835 0.26 AML other m 2023-03-23T10:30:24.05
IV.CERA.HHN. ML:1.3 0.000176 0.34 AML other m 2023-03-23T10:30:26.91
IV.VVLD.HHE. ML:1.2 0.00006845 1.66 AML other m 2023-03-23T10:30:27.84
IV.VVLD.HHN. ML:1.1 0.00006115000000000001 0.3 AML other m 2023-03-23T10:30:29.30
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