Earthquake with magnitude of ML 1.1 on date 03-04-2021 and time 04:55:09 (UTC) in region 2 km S San Demetrio ne' Vestini (AQ)

A magnitude ML 1.1 earthquake occured in region: 2 km S San Demetrio ne' Vestini (AQ), on

  • 03-04-2021 04:55:09 (UTC)
  • 03-04-2021 06:55:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.275, 13.557 at 9 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Villa Sant'Angelo AQ 2 424 424
San Demetrio ne' Vestini AQ 2 1854 2278
Fagnano Alto AQ 3 418 2696
Sant'Eusanio Forconese AQ 3 394 3090
Prata d'Ansidonia AQ 4 496 3586
Poggio Picenze AQ 5 1136 4722
Fossa AQ 6 721 5443
Fontecchio AQ 6 369 5812
Barisciano AQ 7 1828 7640
Ocre AQ 7 1167 8807
Rocca di Cambio AQ 7 533 9340
Rocca di Mezzo AQ 8 1526 10866
San Pio delle Camere AQ 8 661 11527
Caporciano AQ 10 230 11757
Tione degli Abruzzi AQ 10 310 12067
Santo Stefano di Sessanio AQ 11 111 12178
Carapelle Calvisio AQ 11 87 12265
Castelvecchio Calvisio AQ 12 153 12418
Calascio AQ 13 137 12555
Navelli AQ 15 554 13109
L'Aquila AQ 16 69753 82862
Ovindoli AQ 16 1227 84089
Secinaro AQ 17 359 84448
Acciano AQ 17 327 84775
Castel del Monte AQ 17 413 85188
Capestrano AQ 18 884 86072
Ofena AQ 18 506 86578
Lucoli AQ 18 1011 87589
Collepietro AQ 19 237 87826
Villa Santa Lucia degli Abruzzi AQ 19 123 87949

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km SE of L'Aquila (69753 inhabitants)
45 Km S of Teramo (54892 inhabitants)
51 Km W of Chieti (51815 inhabitants)
56 Km W of Montesilvano (53738 inhabitants)
58 Km W of Pescara (121014 inhabitants)
71 Km E of Tivoli (56533 inhabitants)
75 Km E of Guidonia Montecelio (88673 inhabitants)
81 Km E of Terni (111501 inhabitants)
92 Km NE of Velletri (53303 inhabitants)
98 Km E of Roma (2864731 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 1.1 2021-04-03
04:55:09
42.2748 13.5572 9 2021-07-12
16:55:17
Bollettino Sismico Italiano INGV 92265771
Reviewed
Rev100
ML 1.3 2021-04-03
04:55:09
42.2722 13.5463 9 2021-04-03
05:07:20
Sala Sismica INGV-Roma 88728861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-03 04:55:09 ± 0.08
Latitude 42.2748 ± 0.0045
Longitude 13.5572 ± 0.0073
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 92265771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 591
Semi-minor axis of confidence ellipse (meter) 411
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 590
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41189
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 92265771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-05 14:16:06

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 88728861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-03 05:07:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MBAL.EHZ. 2021-04-03T04:56:44.69 3.0 undecidable manual Sn -0.17 0
IV.SBPO.HNZ. 2021-04-03T04:56:40.07 3.0 undecidable manual Sg 8.47 0
IV.MNTV.EHZ. 2021-04-03T04:56:31.52 3.0 undecidable manual Sn -3.37 0
IV.VENL.HNZ. 2021-04-03T04:56:28.89 3.0 undecidable manual Sn 1.83 0
ST.RONC.EHZ. 2021-04-03T04:56:15.15 3.0 negative manual Pg 9.52 0
IV.FIR.HHZ. 2021-04-03T04:56:11.06 3.0 undecidable manual Sg 4.63 0
IV.MPPT.EHZ. 2021-04-03T04:56:09.19 3.0 undecidable manual Sn -2.14 0
IV.GIZZ.HHZ. 2021-04-03T04:56:09.26 3.0 negative manual Pn 0.03 0
IV.MNTV.EHZ. 2021-04-03T04:56:08.73 3.0 positive manual Pg 13.18 0
IV.MOCL.EHZ. 2021-04-03T04:56:08.88 3.0 undecidable manual Sn -1.81 0
GU.GSCL.HHZ. 2021-04-03T04:56:00.25 3.0 undecidable manual Pg 10.77 0
IV.TDS.HHZ. 2021-04-03T04:55:56.91 3.0 undecidable manual Pn -4.97 0
IV.BSSO.HHZ. 2021-04-03T04:55:47.92 3.0 undecidable manual S -1.94 0
IV.VULT.HHZ. 2021-04-03T04:55:42.69 3.0 undecidable manual Pn -0.43 0
IV.BSSO.HHZ. 2021-04-03T04:55:31.13 3.0 undecidable manual P 0.88 0
IV.T1299.EHZ. 2021-04-03T04:55:25.25 0.6 undecidable manual S 331 0.4119 50 0.23 46
IV.VVLD.HHZ. 2021-04-03T04:55:24.74 0.6 undecidable manual S 173 0.4083 50 -0.16 47
IV.RM33.HNE. 2021-04-03T04:55:23.68 0.6 undecidable manual S 313 0.3444 50 0.67 41
IV.INTR.HHZ. 2021-04-03T04:55:23.77 0.6 undecidable manual S 136 0.3678 50 0.05 48
IV.FIAM.HNE. 2021-04-03T04:55:22.57 0.6 undecidable manual S 269 0.3256 50 0.12 48
IV.TERO.HHZ. 2021-04-03T04:55:22.33 0.6 undecidable manual S 6 0.3489 50 -0.83 38
IV.CAMP.HHE. 2021-04-03T04:55:21.07 0.6 undecidable manual S 337 0.2824 50 -0.11 48
IV.PTQR.HHE. 2021-04-03T04:55:20.93 0.6 undecidable manual S 205 0.2779 50 -0.12 48
IV.VCEL.EHZ. 2021-04-03T04:55:19.81 0.6 undecidable manual S 60 0.241 109 0.11 49
IV.T1299.EHZ. 2021-04-03T04:55:18.62 0.3 undecidable manual P 331 0.4119 50 -0.01 72
IV.SMA1.EHZ. 2021-04-03T04:55:18.02 0.3 undecidable manual P 335 0.3912 50 -0.25 69
IV.VVLD.HHZ. 2021-04-03T04:55:18.30 0.6 undecidable manual P 173 0.4083 50 -0.25 46
IV.T0110.HHZ. 2021-04-03T04:55:17.55 0.6 undecidable manual S 106 0.1682 116 0.45 46
IV.FIAM.HNE. 2021-04-03T04:55:17.02 0.3 undecidable manual P 269 0.3256 50 -0.12 72
IV.TERO.HHZ. 2021-04-03T04:55:17.13 0.3 undecidable manual P 6 0.3489 50 -0.42 67
IV.RM33.HNE. 2021-04-03T04:55:17.44 0.3 undecidable manual P 313 0.3444 50 -0.03 73
IV.INTR.HHZ. 2021-04-03T04:55:17.91 0.3 undecidable manual P 136 0.3678 50 0.03 72
IV.CAMP.HHE. 2021-04-03T04:55:16.95 0.3 undecidable manual P 337 0.2824 50 0.54 66
MN.AQU.HHE. 2021-04-03T04:55:16.32 0.6 undecidable manual S 305 0.1376 121 0.27 48
IV.VCEL.EHZ. 2021-04-03T04:55:16.00 0.3 undecidable manual P 60 0.241 109 0.44 68
IV.GIGS.HHE. 2021-04-03T04:55:16.96 0.6 undecidable manual S 4 0.1781 115 -0.49 45
IV.PTQR.HHE. 2021-04-03T04:55:16.24 0.3 undecidable manual P 205 0.2779 50 -0.09 73
IV.GIGS.HHE. 2021-04-03T04:55:14.21 0.3 undecidable manual P 4 0.1781 115 -0.05 75
IV.T0110.HHZ. 2021-04-03T04:55:14.46 0.3 undecidable manual P 106 0.1682 116 0.4 70
MN.AQU.HHE. 2021-04-03T04:55:13.77 0.3 undecidable manual P 305 0.1376 121 0.32 71
IV.FAGN.HHZ. 2021-04-03T04:55:12.33 0.6 undecidable manual S 115 0.0216 165 -0.81 41
IV.FAGN.HHZ. 2021-04-03T04:55:11.58 0.1 undecidable manual P 115 0.0216 165 -0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FAGN.HHE. ML:0 0.00225 0.24 AML other m 2021-04-03T04:55:13.52
IV.FAGN.HHN. ML:0 0.00193 0.62 AML other m 2021-04-03T04:55:13.67
IV.T0110.HHN. ML:1.2 0.000133 0.3 AML other m 2021-04-03T04:55:18.81
IV.T0110.HHE. ML:1.3 0.0001445 1.56 AML other m 2021-04-03T04:55:19.05
IV.VCEL.EHN. ML:1.2 8.481932E-5 0.1408 AML other m 2021-04-03T04:55:21.46
IV.NRCA.HHN. ML:1.9 0.000121 0.1 AML other m 2021-04-03T04:55:22.79
IV.NRCA.HHE. ML:1.5 5.6E-5 1.26 AML other m 2021-04-03T04:55:23.63
IV.INTR.HHE. ML:0.9 2.7025455E-5 0.4 AML other m 2021-04-03T04:55:27.65
IV.VCEL.EHE. ML:1.2 9.280385E-5 1.36 AML other m 2021-04-03T04:55:27.76
IV.INTR.HHN. ML:1.1 3.7881495E-5 0.4992 AML other m 2021-04-03T04:55:34.30
IV.FIR.HHE. ML:3.1 0.0002255 0.06 AML other m 2021-04-03T04:56:13.66
IV.FIR.HHN. ML:3 0.000204 0.72 AML other m 2021-04-03T04:56:18.61
IV.MNTV.EHE. ML:4.1 0.000779 1.3 AML other m 2021-04-03T04:57:03.22
IV.MNTV.EHN. ML:4.1 0.0007715 1.18 AML other m 2021-04-03T04:57:03.75
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