Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 01-11-2021 and time 21:22:17 (UTC) in region 4 km S Crognaleto (TE)

A magnitude ML 1.5 earthquake occured in region: 4 km S Crognaleto (TE), on

  • 01-11-2021 21:22:17 (UTC)
  • 01-11-2021 22:22:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5160, 13.4790 at 14 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
Crognaleto TE 4 1297 1297
Fano Adriano TE 6 296 1593
Pietracamela TE 6 271 1864
Campotosto AQ 10 542 2406
Cortino TE 12 656 3062
Tossicia TE 14 1406 4468
Capitignano AQ 15 665 5133
Montorio al Vomano TE 15 8218 13351
Isola del Gran Sasso d'Italia TE 15 4773 18124
Colledara TE 17 2179 20303
Pizzoli AQ 17 4326 24629
Barete AQ 18 737 25366
Montereale AQ 19 2581 27947
L'Aquila AQ 19 69753 97700
Castelli TE 19 1159 98859
Rocca Santa Maria TE 19 537 99396
Castel Castagna TE 20 500 99896

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of L'Aquila (69753 inhabitants)
25 Km SW of Teramo (54892 inhabitants)
55 Km W of Montesilvano (53738 inhabitants)
60 Km W of Chieti (51815 inhabitants)
61 Km W of Pescara (121014 inhabitants)
68 Km E of Terni (111501 inhabitants)
80 Km SE of Foligno (57155 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
84 Km NE of Guidonia Montecelio (88673 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 1.5 2021-11-01
21:22:17		 42.5157 13.4787 14 2022-03-30
13:04:27		 Bollettino Sismico Italiano INGV 99412751
Reviewed
Rev100 		ML 1.5 2021-11-01
21:22:17		 42.5172 13.4803 14 2021-11-01
21:26:21		 Sala Sismica INGV-Roma 97150541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-01 21:22:17 ± 0.09
Latitude 42.5157 ± 0.0036
Longitude 13.4787 ± 0.0061
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99412751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 567
Semi-minor axis of confidence ellipse (meter) 173
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.60974
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 99412751
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-06 15:02:01

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 97150541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-01 21:26:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-11-01T21:22:38.54 0.6 undecidable manual S 341 67.6767 93 0.63 40
IV.MC2.EHZ. 2021-11-01T21:22:33.95 0.6 undecidable manual S 332 49.8168 94 0.79 38
IV.NRCA.HHZ. 2021-11-01T21:22:32.13 0.3 undecidable manual S 320 46.1205 95 -0.03 73
IV.CSP1.EHZ. 2021-11-01T21:22:28.99 0.3 undecidable manual P 341 67.6767 93 -0.24 68
IV.MC2.EHZ. 2021-11-01T21:22:26.36 0.3 undecidable manual P 332 49.8168 94 -0.12 71
IV.MTRA.EHZ. 2021-11-01T21:22:26.93 0.3 undecidable manual S 346 27.5502 101 -0.32 71
IV.NRCA.HHZ. 2021-11-01T21:22:25.66 0.3 undecidable manual P 320 46.1205 95 -0.25 70
MN.AQU.HNZ. 2021-11-01T21:22:25.23 0.3 undecidable manual S 199 18.87 110 0.21 74
IV.T1299.HNZ. 2021-11-01T21:22:25.51 0.3 undecidable manual S 309 20.7681 107 0.03 76
IV.RM33.EHZ. 2021-11-01T21:22:25.42 0.3 undecidable manual S 268 21.6672 106 -0.28 72
IV.TERO.HHZ. 2021-11-01T21:22:24.15 0.3 undecidable manual S 41 15.6732 117 -0.08 76
IV.SMA1.EHZ. 2021-11-01T21:22:24.58 0.3 undecidable manual S 317 17.2716 114 -0.04 76
IV.FAGN.HHZ. 2021-11-01T21:22:23.36 0.6 undecidable manual P 163 29.0487 100 0.06 50
IV.RM33.EHZ. 2021-11-01T21:22:22.12 0.3 undecidable manual P 268 21.6672 106 -0.06 75
IV.CAMP.HHZ. 2021-11-01T21:22:22.44 0.3 undecidable manual S 291 6.0939 150 0.07 78
IV.MTRA.EHZ. 2021-11-01T21:22:22.86 0.1 undecidable manual P 346 27.5502 101 -0.22 97
IV.GIGS.HHZ. 2021-11-01T21:22:22.96 0.3 undecidable manual S 132 10.3785 133 -0.11 75
MN.AQU.HNZ. 2021-11-01T21:22:22.00 0.3 undecidable manual P 199 18.87 110 0.22 74
IV.T1299.HNZ. 2021-11-01T21:22:22.15 0.1 undecidable manual P 309 20.7681 107 0.09 100
IV.TERO.HHZ. 2021-11-01T21:22:21.38 0.3 undecidable manual P 41 15.6732 117 0.05 76
IV.SMA1.EHZ. 2021-11-01T21:22:21.58 0.3 undecidable manual P 317 17.2716 114 0.02 77
IV.CAMP.HHZ. 2021-11-01T21:22:20.45 0.3 undecidable manual P 291 6.0939 150 0.2 76
IV.GIGS.HHZ. 2021-11-01T21:22:20.67 0.3 undecidable manual P 132 10.3785 133 0.01 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAMP.HHE. ML:1.2 0.000174 0.16 AML other m 2021-11-01T21:22:22.64
IV.CAMP.HHN. ML:1.0 0.000128 0.18 AML other m 2021-11-01T21:22:22.56
IV.TERO.HHN. ML:1.6 0.00029 0.18 AML other m 2021-11-01T21:22:24.28
IV.TERO.HNN. ML:1.6 0.0003095 0.16 AML other m 2021-11-01T21:22:24.28
IV.TERO.HNE. ML:1.5 0.00023199999999999997 0.28 AML other m 2021-11-01T21:22:24.22
IV.TERO.HHE. ML:1.5 0.00026000000000000003 0.18 AML other m 2021-11-01T21:22:24.27
IV.MTRA.EHE. ML:1.5 0.00014749999999999998 1.9 AML other m 2021-11-01T21:22:27.03
IV.MTRA.EHN. ML:1.4 0.00011615 0.08 AML other m 2021-11-01T21:22:27.02
IV.NRCA.HHE. ML:1.6 0.00011935000000000001 0.52 AML other m 2021-11-01T21:22:32.16
IV.NRCA.HHN. ML:1.6 0.00012275 0.1 AML other m 2021-11-01T21:22:33.11
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