Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 12-10-2021 and time 08:23:07 (Italy) in region 3 km S Capitignano (AQ)

A magnitude ML 1.5 earthquake occured in region: 3 km S Capitignano (AQ), on

  • 12-10-2021 06:23:07 (UTC)
  • 12-10-2021 08:23:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4940, 13.3070 at 16 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
Capitignano AQ 3 665 665
Barete AQ 5 737 1402
Montereale AQ 6 2581 3983
Pizzoli AQ 6 4326 8309
Cagnano Amiterno AQ 8 1369 9678
Campotosto AQ 9 542 10220
Scoppito AQ 14 3727 13947
Borbona RI 14 617 14564
Amatrice RI 15 2657 17221
Crognaleto TE 15 1297 18518
Posta RI 18 694 19212
L'Aquila AQ 18 69753 88965
Cittareale RI 18 482 89447

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of L'Aquila (69753 inhabitants)
38 Km SW of Teramo (54892 inhabitants)
55 Km E of Terni (111501 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
71 Km SE of Foligno (57155 inhabitants)
72 Km NE of Tivoli (56533 inhabitants)
73 Km W of Chieti (51815 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
75 Km W of Pescara (121014 inhabitants)
95 Km NE of Roma (2864731 inhabitants)
99 Km E of Viterbo (67173 inhabitants)
100 Km NE of Velletri (53303 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 2021-10-12
06:23:07		 42.4945 13.3067 16 2022-03-30
13:04:28		 Bollettino Sismico Italiano INGV 99533001
Reviewed
Rev100 		ML 1.5 2021-10-12
06:23:07		 42.4943 13.3072 17 2021-10-12
07:22:17		 Sala Sismica INGV-Roma 96465221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-12 06:23:07 ± 0.1
Latitude 42.4945 ± 0.0036
Longitude 13.3067 ± 0.0037
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99533001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 183
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 33
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42538
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
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 99533001
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-10 15:14:18

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 96465221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-12 07:22:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2021-10-12T06:23:22.05 0.1 undecidable manual S 2 44.9217 98 0.24 90
IV.NRCA.HHZ. 2021-10-12T06:23:20.57 0.1 undecidable manual S 337 40.7259 99 -0.14 92
IV.GAVE.EHZ. 2021-10-12T06:23:20.45 0.3 undecidable manual S 303 40.2264 99 -0.11 69
IV.MTRA.EHZ. 2021-10-12T06:23:17.56 0.1 undecidable manual S 14 30.0477 104 -0.33 91
IV.TERO.HNE. 2021-10-12T06:23:17.26 0.1 undecidable manual S 60 28.1496 105 -0.16 95
IV.LNSS.HHZ. 2021-10-12T06:23:16.62 0.1 undecidable manual S 299 24.8529 109 0.04 98
IV.GIGS.HHE. 2021-10-12T06:23:15.86 0.1 undecidable manual S 102 22.2555 112 -0.06 98
MN.AQU.HNN. 2021-10-12T06:23:15.03 0.6 undecidable manual S 153 17.5713 120 0.24 47
IV.MMO1.EHZ. 2021-10-12T06:23:15.64 0.1 positive manual P 2 44.9217 98 -0.03 94
IV.GAVE.EHZ. 2021-10-12T06:23:14.86 0.1 positive manual P 303 40.2264 99 -0.09 93
IV.SMA1.EHZ. 2021-10-12T06:23:14.34 0.1 undecidable manual S 9 15.2736 125 0.06 98
IV.T1299.EHE. 2021-10-12T06:23:14.39 0.1 undecidable manual S 353 15.6732 124 0.04 99
IV.NRCA.HHZ. 2021-10-12T06:23:14.91 0.1 positive manual P 337 40.7259 99 -0.12 93
IV.TERO.HNE. 2021-10-12T06:23:13.23 0.1 undecidable manual P 60 28.1496 105 0.1 95
IV.CAMP.HHE. 2021-10-12T06:23:13.18 0.1 undecidable manual S 61 9.5793 141 0.02 100
IV.MTRA.EHZ. 2021-10-12T06:23:13.28 0.1 positive manual P 14 30.0477 104 -0.13 95
IV.MNTT.EHZ. 2021-10-12T06:23:12.62 3.0 undecidable manual Pn -3.72 0
IV.LNSS.HHZ. 2021-10-12T06:23:12.75 0.1 positive manual P 299 24.8529 109 0.1 96
IV.RM33.EHZ. 2021-10-12T06:23:12.68 0.1 undecidable manual S 282 7.6812 148 -0.19 95
IV.GIGS.HHE. 2021-10-12T06:23:12.34 0.1 undecidable manual P 102 22.2555 112 0.07 96
MN.AQU.HNN. 2021-10-12T06:23:11.12 0.3 undecidable manual P 153 17.5713 120 -0.49 67
IV.SMA1.EHZ. 2021-10-12T06:23:11.52 0.1 undecidable manual P 9 15.2736 125 0.2 95
IV.T1299.EHE. 2021-10-12T06:23:11.58 0.1 positive manual P 353 15.6732 124 0.22 95
IV.CAMP.HHE. 2021-10-12T06:23:10.90 0.1 negative manual P 61 9.5793 141 0.23 96
IV.MC2.EHZ. 2021-10-12T06:23:10.61 0.3 undecidable manual P 47.2194 -5.41 0
IV.RM33.EHZ. 2021-10-12T06:23:10.69 0.1 negative manual P 282 7.6812 148 0.18 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:0.0 0.00028789325 0.1792 AML other m 2021-10-12T06:23:12.96
IV.RM33.EHE. ML:0.0 0.00018352385 0.2016 AML other m 2021-10-12T06:23:12.97
IV.SMA1.EHN. ML:0.0 0.00035943990999999997 0.2016 AML other m 2021-10-12T06:23:15.03
IV.SMA1.EHE. ML:0.0 0.00046229815000000004 0.1376 AML other m 2021-10-12T06:23:14.77
IV.LNSS.HHE. ML:0.0 0.00023639294999999998 0.16 AML other m 2021-10-12T06:23:16.93
IV.LNSS.HHN. ML:0.0 0.00013500235 0.16 AML other m 2021-10-12T06:23:17.57
IV.NRCA.HHE. ML:0.0 0.0000978212 0.08 AML other m 2021-10-12T06:23:22.16
IV.NRCA.HHN. ML:0.0 0.00008081829 0.0992 AML other m 2021-10-12T06:23:22.33
IV.GAVE.EHN. ML:0.0 0.00006144560000000001 0.24 AML other m 2021-10-12T06:23:22.38
IV.GAVE.EHE. ML:0.0 0.000070260195 0.1792 AML other m 2021-10-12T06:23:23.38
IV.RM33.HNE. ML:0.0 0.00018364835000000003 0.192 AML other m 2021-10-12T06:23:14.17
IV.RM33.HNN. ML:0.0 0.0002882067 0.1888 AML other m 2021-10-12T06:23:12.96
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