Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 30-12-2021 and time 21:05:16 (UTC) in region 3 km E Capitignano (AQ)

A magnitude ML 0.7 earthquake occured in region: 3 km E Capitignano (AQ), on

  • 30-12-2021 21:05:16 (UTC)
  • 30-12-2021 22:05:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5070, 13.3390 at 12 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
Campotosto AQ 6 542 1207
Barete AQ 8 737 1944
Montereale AQ 8 2581 4525
Pizzoli AQ 9 4326 8851
Cagnano Amiterno AQ 11 1369 10220
Crognaleto TE 12 1297 11517
Amatrice RI 14 2657 14174
Scoppito AQ 17 3727 17901
Borbona RI 17 617 18518
Fano Adriano TE 17 296 18814
Pietracamela TE 18 271 19085
L'Aquila AQ 18 69753 88838
Cortino TE 19 656 89494
Cittareale RI 19 482 89976
Posta RI 20 694 90670

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km N of L'Aquila (69753 inhabitants)
34 Km SW of Teramo (54892 inhabitants)
57 Km E of Terni (111501 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
70 Km W of Chieti (51815 inhabitants)
72 Km W of Pescara (121014 inhabitants)
72 Km SE of Foligno (57155 inhabitants)
75 Km NE of Tivoli (56533 inhabitants)
76 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km NE 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 0.7 2021-12-30
21:05:16		 42.5073 13.3392 12 2022-03-30
13:04:25		 Bollettino Sismico Italiano INGV 99257291
Reviewed
Rev100 		ML 0.7 2021-12-30
21:05:16		 42.4987 13.3432 11 2021-12-30
21:11:30		 Sala Sismica INGV-Roma 99170321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-30 21:05:16 ± 0.14
Latitude 42.5073 ± 0.0090
Longitude 13.3392 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99257291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 854
Semi-minor axis of confidence ellipse (meter) 490
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 172
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 16
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) 0.36512
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 99170321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-30 21:11:30

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 99257291
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-03 11:48:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CADC.EHZ. 2021-12-30T21:07:09.53 3.0 undecidable manual Sg 10.58 0
OX.SABO.HNZ. 2021-12-30T21:07:02.55 3.0 undecidable manual Sg 10.22 0
GU.RRL.HHZ. 2021-12-30T21:06:44.82 3.0 undecidable manual P 8.02 0
IV.ESCV.HHZ. 2021-12-30T21:06:33.42 3.0 negative manual P 2.64 0
IV.BDI.HHZ. 2021-12-30T21:06:29.43 3.0 undecidable manual Sn -0.22 0
IV.PCN.HNZ. 2021-12-30T21:06:23.63 3.0 positive manual P 9.99 0
IV.FREG.EHZ. 2021-12-30T21:06:11.12 3.0 undecidable manual P -1.8 0
IV.CMPR.HHZ. 2021-12-30T21:06:03.11 3.0 undecidable manual P 3.44 0
IX.SRN3.HHZ.02 2021-12-30T21:06:00.65 3.0 positive manual P 1.92 0
IV.FIR.HHZ. 2021-12-30T21:05:50.07 3.0 positive manual P -0.74 0
IV.LRP.EHZ. 2021-12-30T21:05:46.27 3.0 undecidable manual S -6.02 0
IV.APEC.HHZ. 2021-12-30T21:05:41.55 3.0 undecidable manual P 1.87 0
IV.NRCA.HHZ. 2021-12-30T21:05:30.33 0.6 undecidable manual S 333 40.5261 92 0.11 48
IV.MTRA.HNZ. 2021-12-30T21:05:26.55 0.6 undecidable manual S 10 28.0497 93 -0.34 47
IV.LNSS.HHZ. 2021-12-30T21:05:26.56 0.6 undecidable manual S 294 26.6511 94 0.06 50
IV.TERO.HHZ. 2021-12-30T21:05:25.74 0.6 undecidable manual S 59 25.1526 94 -0.36 47
IV.GIGS.HHZ. 2021-12-30T21:05:24.49 0.6 undecidable manual S 107 20.0688 97 -0.26 49
IV.NRCA.HHZ. 2021-12-30T21:05:24.63 0.6 undecidable manual P 333 40.5261 92 0.03 49
IV.SMA1.EHZ. 2021-12-30T21:05:23.37 0.6 undecidable manual S 359 13.6752 111 0.27 50
IV.TERO.HHZ. 2021-12-30T21:05:22.35 0.1 undecidable manual P 59 25.1526 94 0.12 99
IV.LNSS.HHZ. 2021-12-30T21:05:22.39 0.1 undecidable manual P 294 26.6511 94 -0.06 100
IV.MTRA.HNZ. 2021-12-30T21:05:22.59 0.1 undecidable manual P 10 28.0497 93 -0.08 99
IV.GIGS.HHZ. 2021-12-30T21:05:21.44 0.3 undecidable manual P 107 20.0688 97 -0.01 76
IV.CAMP.HHZ. 2021-12-30T21:05:21.52 0.6 undecidable manual S 61 6.4935 143 -0.05 51
IV.RM33.EHZ. 2021-12-30T21:05:21.88 0.6 undecidable manual S 271 10.1787 125 -0.4 48
IV.RM33.EHZ. 2021-12-30T21:05:20.07 0.3 undecidable manual P 271 10.1787 125 0.05 77
IV.SMA1.EHZ. 2021-12-30T21:05:20.73 0.1 undecidable manual P 359 13.6752 111 0.24 99
IV.CAMP.HHZ. 2021-12-30T21:05:19.94 0.3 undecidable manual P 61 6.4935 143 0.33 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:0.6 0.000042050385000000005 0.2432 AML other m 2021-12-30T21:05:22.53
IV.RM33.EHN. ML:0.5 0.000033170240000000006 0.1024 AML other m 2021-12-30T21:05:22.73
IV.SMA1.EHN. ML:1.0 0.000090255125 0.3584 AML other m 2021-12-30T21:05:23.88
IV.SMA1.EHE. ML:0.8 0.00006521614 0.192 AML other m 2021-12-30T21:05:23.71
IV.TERO.HHE. ML:1.5 0.00018581055 1.024 AML other m 2021-12-30T21:05:25.01
IV.TERO.HHN. ML:0.2 0.0000114780385 0.1408 AML other m 2021-12-30T21:05:27.10
IV.NRCA.HHE. ML:0.8 0.000018826255 0.0768 AML other m 2021-12-30T21:05:30.59
IV.NRCA.HHN. ML:0.6 0.000012664145 0.1024 AML other m 2021-12-30T21:05:32.03
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