Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 23-02-2023 and time 04:03:22 (UTC) in region 3 km NW Cappadocia (AQ)

A magnitude ML 1.2 earthquake occured in region: 3 km NW Cappadocia (AQ), on

  • 23-02-2023 04:03:22 (UTC)
  • 23-02-2023 05:03:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.0350, 13.2600 at 13 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
Cappadocia AQ 3 528 528
Tagliacozzo AQ 4 6889 7417
Scurcola Marsicana AQ 8 2824 10241
Castellafiume AQ 8 1106 11347
Sante Marie AQ 9 1166 12513
Magliano de' Marsi AQ 11 3690 16203
Vallepietra RM 12 283 16486
Camerata Nuova RM 13 447 16933
Capistrello AQ 13 5252 22185
Pereto AQ 13 682 22867
Avezzano AQ 14 42515 65382
Massa d'Albe AQ 14 1476 66858
Rocca di Botte AQ 16 856 67714
Canistro AQ 16 995 68709
Carsoli AQ 16 5396 74105
Cervara di Roma RM 17 455 74560
Filettino FR 17 565 75125
Borgorose RI 18 4591 79716
Subiaco RM 18 9074 88790
Jenne RM 18 366 89156
Oricola AQ 18 1244 90400
Civitella Roveto AQ 19 3268 93668
Luco dei Marsi AQ 19 6079 99747
Trevi nel Lazio FR 19 1822 101569
Agosta RM 20 1765 103334

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of L'Aquila (69753 inhabitants)
39 Km E of Tivoli (56533 inhabitants)
44 Km E of Guidonia Montecelio (88673 inhabitants)
56 Km NE of Velletri (53303 inhabitants)
66 Km E of Roma (2864731 inhabitants)
70 Km NE of Latina (125985 inhabitants)
70 Km NE of Aprilia (73446 inhabitants)
75 Km NE of Pomezia (62966 inhabitants)
77 Km SE of Terni (111501 inhabitants)
79 Km SW of Teramo (54892 inhabitants)
83 Km W of Chieti (51815 inhabitants)
84 Km NE of Anzio (54211 inhabitants)
90 Km E of Fiumicino (78395 inhabitants)
91 Km SW of Montesilvano (53738 inhabitants)
92 Km SW 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 1.2 2023-02-23
04:03:22		 42.0348 13.2603 13 2024-03-01
17:18:17		 Bollettino Sismico Italiano INGV 123087881
Reviewed
Rev100 		ML 1.2 2023-02-23
04:03:22		 42.0212 13.2467 9 2023-02-23
04:08:34		 Sala Sismica INGV-Roma 114722431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-23 04:03:22 ± 0.09
Latitude 42.0348 ± 0.0054
Longitude 13.2603 ± 0.0061
Depth (km) 13 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 123087881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 492
Semi-minor axis of confidence ellipse (meter) 326
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 182
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.10522
Epicentral distance of station farthest from the epicenter (degree) 0.58456
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 123087881
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-13 16:15:34

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 114722431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-23 04:08:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LATB.EHZ. 2023-02-23T04:03:41.90 0.6 undecidable manual S 202 64.8906 92 -0.38 42
IV.POFI.HHZ. 2023-02-23T04:03:39.42 0.6 undecidable manual S 133 51.3153 93 0.76 39
IV.LRP.EHZ. 2023-02-23T04:03:38.64 0.6 undecidable manual S 148 50.8158 93 0.12 47
IV.MTCE.HHZ. 2023-02-23T04:03:36.49 0.6 undecidable manual S 268 42.7239 93 0.12 47
IV.FAGN.HHZ. 2023-02-23T04:03:34.26 0.6 undecidable manual S 46 36.9297 94 -0.57 44
IV.LATB.EHZ. 2023-02-23T04:03:34.02 0.6 undecidable manual P 202 64.8906 92 0.1 46
IV.FIAM.HHZ. 2023-02-23T04:03:32.66 0.6 undecidable manual S 336 28.4493 96 0.09 48
IV.GUAR.HHZ. 2023-02-23T04:03:32.80 0.6 undecidable manual S 171 27.0507 97 0.6 44
IV.POFI.HHZ. 2023-02-23T04:03:31.58 0.3 undecidable manual P 133 51.3153 93 -0.25 68
IV.CERT.HNZ. 2023-02-23T04:03:31.19 0.6 undecidable manual S 248 24.8529 98 -0.44 45
IV.LRP.EHZ. 2023-02-23T04:03:31.78 0.1 undecidable manual P 148 50.8158 93 0.03 95
IV.GIUL.HHZ. 2023-02-23T04:03:31.92 0.3 undecidable manual P 181 52.9026 92 -0.16 69
IV.MTCE.HHZ. 2023-02-23T04:03:30.55 0.3 undecidable manual P 268 42.7239 93 0.04 72
IT.CSO1.HGZ. 2023-02-23T04:03:29.58 0.6 undecidable manual S 297 15.9729 111 0.26 48
IV.FAGN.HHZ. 2023-02-23T04:03:29.88 0.3 undecidable manual P 46 36.9297 94 0.26 69
IV.FIAM.HHZ. 2023-02-23T04:03:28.52 0.3 undecidable manual P 336 28.4493 96 0.21 71
IV.PTQR.HHZ. 2023-02-23T04:03:28.09 0.6 undecidable manual S 97 11.6772 124 -0.21 49
IV.GUAR.HHZ. 2023-02-23T04:03:27.88 0.3 undecidable manual P 171 27.0507 97 -0.22 71
IV.CERT.HNZ. 2023-02-23T04:03:27.64 0.1 undecidable manual P 248 24.8529 98 -0.13 97
IT.CSO1.HGZ. 2023-02-23T04:03:26.65 0.3 undecidable manual P 297 15.9729 111 0.21 72
IV.PTQR.HHZ. 2023-02-23T04:03:25.72 0.1 undecidable manual P 97 11.6772 124 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PTQR.HHE. ML:1.4 0.000235 0.28 AML other m 2023-02-23T04:03:28.67
IV.PTQR.HHN. ML:1.0 0.0001105 0.84 AML other m 2023-02-23T04:03:28.22
IV.GUAR.HHN. ML:1.4 0.00011549999999999999 0.52 AML other m 2023-02-23T04:03:33.29
IV.FIAM.HHE. ML:1.5 0.000142 0.46 AML other m 2023-02-23T04:03:35.18
IV.GUAR.HHE. ML:1.4 0.00011599999999999999 0.76 AML other m 2023-02-23T04:03:35.21
IV.FIAM.HHN. ML:1.4 0.0001185 1.26 AML other m 2023-02-23T04:03:35.86
IV.FAGN.HHE. ML:1.4 0.00009900000000000001 1.3 AML other m 2023-02-23T04:03:39.20
IV.LRP.EHE. ML:1.1 0.0000343 0.28 AML other m 2023-02-23T04:03:41.05
IV.GIUL.HHN. ML:1.0 0.000024800000000000003 0.3 AML other m 2023-02-23T04:03:41.83
IV.LRP.EHN. ML:0.6 0.000010785000000000001 0.16 AML other m 2023-02-23T04:03:42.11
IV.GIUL.HHE. ML:0.9 0.00002165 0.22 AML other m 2023-02-23T04:03:42.56
IV.FAGN.HHN. ML:1.2 0.000056 0.4 AML other m 2023-02-23T04:03:46.85
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