Earthquake with magnitude of ML 1.2 on date 22-11-2023 and time 05:55:21 (UTC) in region 4 km SW L'Aquila (AQ)

A magnitude ML 1.2 earthquake occured in region: 4 km SW L'Aquila (AQ), on

  • 22-11-2023 05:55:21 (UTC)
  • 22-11-2023 06:55:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3280, 13.3720 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
L'Aquila AQ 4 69753 69753
Lucoli AQ 5 1011 70764
Tornimparte AQ 7 3187 73951
Ocre AQ 10 1167 75118
Fossa AQ 10 721 75839
Scoppito AQ 11 3727 79566
Sant'Eusanio Forconese AQ 13 394 79960
Pizzoli AQ 14 4326 84286
Rocca di Cambio AQ 14 533 84819
Poggio Picenze AQ 14 1136 85955
Villa Sant'Angelo AQ 15 424 86379
Barete AQ 16 737 87116
San Demetrio ne' Vestini AQ 16 1854 88970
Rocca di Mezzo AQ 18 1526 90496
Barisciano AQ 18 1828 92324
Fagnano Alto AQ 19 418 92742
Borgorose RI 19 4591 97333
Cagnano Amiterno AQ 19 1369 98702

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km SW of L'Aquila (69753 inhabitants)
46 Km SW of Teramo (54892 inhabitants)
62 Km NE of Tivoli (56533 inhabitants)
64 Km NE of Guidonia Montecelio (88673 inhabitants)
65 Km E of Terni (111501 inhabitants)
66 Km W of Chieti (51815 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
71 Km W of Pescara (121014 inhabitants)
87 Km NE of Velletri (53303 inhabitants)
88 Km NE of Roma (2864731 inhabitants)
89 Km SE of Foligno (57155 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 1.2 2023-11-22
05:55:21
42.3277 13.3718 11 2023-11-22
06:08:29
Sala Sismica INGV-Roma 123326041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-22 05:55:21 ± 0.08
Latitude 42.3277 ± 0.0045
Longitude 13.3718 ± 0.0061
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 123326041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 529
Semi-minor axis of confidence ellipse (meter) 433
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 204
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
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) 0.03597
Epicentral distance of station farthest from the epicenter (degree) 0.50542
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 123326041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-22 06:08:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHE. 2023-11-22T05:55:35.51 0.6 undecidable manual S 318 40.8258 50 0.51 44
IV.SMA1.EHZ. 2023-11-22T05:55:33.46 0.6 undecidable manual S 355 33.744 50 0.36 46
IV.T0110.HHE. 2023-11-22T05:55:33.71 0.6 undecidable manual S 108 34.9428 50 0.28 48
IV.TERO.HHZ. 2023-11-22T05:55:33.67 0.6 undecidable manual S 30 37.8288 50 -0.54 43
IV.PTQR.HHZ. 2023-11-22T05:55:32.82 0.6 undecidable manual S 176 34.0437 50 -0.35 45
IV.INTR.HHE. 2023-11-22T05:55:31.26 0.1 undecidable manual P 128 56.0994 50 -0.43 86
IV.RM33.EHZ. 2023-11-22T05:55:30.51 0.6 undecidable manual S 327 23.8539 50 0.03 50
IV.LNSS.HHE. 2023-11-22T05:55:29.65 0.1 undecidable manual P 318 40.8258 50 0.32 92
IV.CAMP.HHZ. 2023-11-22T05:55:29.88 0.6 undecidable manual S 7 23.2545 50 -0.44 46
IV.FAGN.HHZ. 2023-11-22T05:55:29.58 0.6 undecidable manual S 111 18.6702 120 0.5 45
IV.GIGS.HHZ. 2023-11-22T05:55:29.57 0.6 undecidable manual S 50 21.5673 50 -0.29 48
IV.FIAM.HHZ. 2023-11-22T05:55:29.69 0.6 undecidable manual S 253 21.9669 50 -0.26 47
IV.PTQR.HHZ. 2023-11-22T05:55:28.36 1.0 undecidable manual P 176 34.0437 50 0.08 25
IV.VCEL.EHE. 2023-11-22T05:55:28.99 0.1 undecidable manual P 79 39.1275 50 -0.08 96
IV.TERO.HHZ. 2023-11-22T05:55:28.51 0.3 positive manual P 30 37.8288 50 -0.36 68
IV.SMA1.EHZ. 2023-11-22T05:55:28.70 1.0 positive manual P 355 33.744 50 0.46 23
IV.T0110.HHE. 2023-11-22T05:55:28.82 0.1 undecidable manual P 108 34.9428 50 0.4 92
IV.GIGS.HHZ. 2023-11-22T05:55:26.29 1.0 positive manual P 50 21.5673 50 -0.07 25
IV.FIAM.HHZ. 2023-11-22T05:55:26.37 0.1 positive manual P 253 21.9669 50 -0.05 100
IV.CAMP.HHZ. 2023-11-22T05:55:26.55 0.6 undecidable manual P 7 23.2545 50 -0.08 50
IV.FAGN.HHZ. 2023-11-22T05:55:26.06 0.3 negative manual P 111 18.6702 120 0.15 74
IV.RM33.EHZ. 2023-11-22T05:55:26.91 1.0 negative manual P 327 23.8539 50 0.19 24
MN.AQU.HHZ. 2023-11-22T05:55:25.54 0.6 undecidable manual S 43 3.996 160 -0.04 51
MN.AQU.HHZ. 2023-11-22T05:55:24.03 0.1 undecidable manual P 43 3.996 160 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FAGN.HHN. ML:1.6 0.0003155 0.32 AML other m 2023-11-22T05:55:31.69
IV.FAGN.HHE. ML:1.6 0.0002689099 0.5408 AML other m 2023-11-22T05:55:32.27
IV.TERO.HHN. ML:1.4 0.000088262055 0.2816 AML other m 2023-11-22T05:55:35.20
IV.TERO.HHE. ML:1.3 0.000073530085 0.1984 AML other m 2023-11-22T05:55:35.35
IV.GIGS.HHE. ML:1.0 0.00006683108 0.2976 AML other m 2023-11-22T05:55:31.15
IV.GIGS.HHN. ML:0.9 0.000056733835 0.2208 AML other m 2023-11-22T05:55:30.91
IV.FIAM.HNE. ML:1.3 0.00013591768 0.4384 AML other m 2023-11-22T05:55:29.86
IV.FIAM.HNN. ML:1.2 0.00011461409 1.5296 AML other m 2023-11-22T05:55:30.19
IV.FIAM.HHE. ML:1.1 0.0000905617255 0.4192 AML other m 2023-11-22T05:55:29.87
IV.FIAM.HHN. ML:1.0 0.000074690755 0.1184 AML other m 2023-11-22T05:55:30.19
IV.CAMP.HHE. ML:1.1 0.00007314748 0.4608 AML other m 2023-11-22T05:55:31.65
IV.CAMP.HHN. ML:1.1 0.000073244215 0.7392 AML other m 2023-11-22T05:55:30.45
IV.RM33.EHE. ML:1.1 0.000077334145 0.2208 AML other m 2023-11-22T05:55:32.41
IV.RM33.EHN. ML:1.1 0.00008072566 0.24 AML other m 2023-11-22T05:55:33.40
IV.RM33.HNE. ML:1.4 0.00013859110000000004 0.7808 AML other m 2023-11-22T05:55:29.71
IV.RM33.HNN. ML:1.3 0.00012962304999999998 0.3008 AML other m 2023-11-22T05:55:33.27
IV.PTQR.HHE. ML:1.2 0.00007053099 0.9824 AML other m 2023-11-22T05:55:38.12
IV.PTQR.HHN. ML:0.9 0.000033620805 0.1792 AML other m 2023-11-22T05:55:33.72
IV.TERO.HNE. ML:1.7 0.00019381124999999998 2.0928 AML other m 2023-11-22T05:55:35.12
IV.TERO.HNN. ML:1.4 0.00010227175 1.568 AML other m 2023-11-22T05:55:34.52
IV.SMA1.EHE. ML:1.2 0.00005999149499999999 0.6976 AML other m 2023-11-22T05:55:34.54
IV.SMA1.EHN. ML:1.3 0.00008763599 0.96 AML other m 2023-11-22T05:55:34.36
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