Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 28-11-2021 and time 02:50:27 (UTC) in region 4 km NE Barete (AQ)

A magnitude ML 1.9 earthquake occured in region: 4 km NE Barete (AQ), on

  • 28-11-2021 02:50:27 (UTC)
  • 28-11-2021 03:50:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4760, 13.3120 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
Barete AQ 4 737 737
Pizzoli AQ 5 4326 5063
Capitignano AQ 5 665 5728
Cagnano Amiterno AQ 7 1369 7097
Montereale AQ 8 2581 9678
Campotosto AQ 10 542 10220
Scoppito AQ 12 3727 13947
Borbona RI 15 617 14564
L'Aquila AQ 16 69753 84317
Crognaleto TE 16 1297 85614
Amatrice RI 17 2657 88271
Posta RI 18 694 88965

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 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 NE of Tivoli (56533 inhabitants)
71 Km NE of Guidonia Montecelio (88673 inhabitants)
72 Km W of Chieti (51815 inhabitants)
73 Km SE of Foligno (57155 inhabitants)
74 Km W of Pescara (121014 inhabitants)
94 Km NE of Roma (2864731 inhabitants)
98 Km NE of Velletri (53303 inhabitants)
99 Km E of Viterbo (67173 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 1.9 2021-11-28
02:50:27		 42.4755 13.312 12 2022-03-30
13:04:25		 Bollettino Sismico Italiano INGV 99283751
Reviewed
Rev100 		ML 1.9 2021-11-28
02:50:27		 42.4645 13.323 11 2021-11-28
03:02:35		 Sala Sismica INGV-Roma 97889551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-28 02:50:27 ± 0.07
Latitude 42.4755 ± 0.0036
Longitude 13.3120 ± 0.0061
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 99283751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 506
Semi-minor axis of confidence ellipse (meter) 180
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 36
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.62233
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 99283751
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-03 17:49:47

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 97889551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-28 03:02:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.PLRO.HHZ. 2021-11-28T02:52:13.05 3.0 undecidable manual Sn -4.98 0
IV.ZEN8.EHZ. 2021-11-28T02:52:06.82 3.0 undecidable manual Sn -1.33 0
IV.NDIM.HHZ. 2021-11-28T02:51:48.24 3.0 undecidable manual Sn -3.09 0
IV.RESU.HHZ. 2021-11-28T02:51:38.28 3.0 undecidable manual Pn -1.53 0
IV.SARZ.HHZ. 2021-11-28T02:51:29.73 3.0 undecidable manual Pn 1.37 0
IV.CAFE.HHZ. 2021-11-28T02:51:25.27 3.0 undecidable manual Sn -2.26 0
IV.PAOL.HHZ. 2021-11-28T02:51:20.07 3.0 undecidable manual Sn 0.35 0
IV.SACS.HHZ. 2021-11-28T02:51:06.68 3.0 undecidable manual S 1.36 0
IX.SCL3.EHZ.02 2021-11-28T02:51:05.36 3.0 negative manual Pn -1.09 0
IV.MMUR.HNZ. 2021-11-28T02:50:58.87 3.0 undecidable manual S -3.78 0
IV.LPEL.HHZ. 2021-11-28T02:50:53.43 3.0 undecidable manual S -0.92 0
IV.CING.HHZ. 2021-11-28T02:50:45.37 3.0 negative manual P -0.14 0
IV.MC2.EHZ. 2021-11-28T02:50:43.62 0.3 undecidable manual S 348 49.4172 91 0.28 67
IV.PTQR.HHZ. 2021-11-28T02:50:43.91 0.6 undecidable manual S 172 50.8158 91 0.19 46
IV.MMO1.HNZ. 2021-11-28T02:50:42.67 0.6 undecidable manual S 1 47.0196 91 -0.04 47
IV.GAVE.HNZ. 2021-11-28T02:50:41.16 0.3 undecidable manual S 305 41.7249 91 -0.14 69
IV.NRCA.HNZ. 2021-11-28T02:50:41.59 0.6 undecidable manual S 338 42.8238 91 -0.01 48
IV.MNTT.EHZ. 2021-11-28T02:50:40.59 0.3 undecidable manual P 19 69.0753 91 0.83 54
IV.CESI.HHZ. 2021-11-28T02:50:39.59 0.6 undecidable manual P 331 67.4769 91 0.08 45
IV.CSP1.EHZ. 2021-11-28T02:50:39.53 0.6 undecidable manual P 353 68.8755 91 -0.21 44
IV.GUMA.HHZ. 2021-11-28T02:50:39.32 0.6 undecidable manual P 2 65.1903 91 0.16 45
IV.TRTR.HHZ. 2021-11-28T02:50:39.44 0.3 undecidable manual P 53 61.3941 91 0.86 54
IV.OFFI.HHZ. 2021-11-28T02:50:38.84 0.1 undecidable manual P 31 59.3961 91 0.57 81
IV.MTRA.EHZ. 2021-11-28T02:50:38.16 0.3 undecidable manual S 12 31.9458 92 -0.52 66
IV.MF5.EHZ. 2021-11-28T02:50:38.28 0.3 undecidable manual P 12 58.0974 91 0.21 67
IV.FDMO.HHZ. 2021-11-28T02:50:38.75 0.6 undecidable manual P 344 64.8906 91 -0.36 43
IV.LNSS.HHZ. 2021-11-28T02:50:37.13 0.3 undecidable manual S 303 26.3514 92 -0.05 72
IV.PTQR.HHZ. 2021-11-28T02:50:37.05 0.6 undecidable manual P 172 50.8158 91 0.1 47
IV.TERO.HHZ. 2021-11-28T02:50:37.46 0.3 undecidable manual S 55 28.9488 92 -0.41 68
IV.VCEL.EHZ. 2021-11-28T02:50:36.43 0.3 undecidable manual P 102 44.2224 91 0.5 65
IV.ARRO.EHZ. 2021-11-28T02:50:36.11 0.3 undecidable manual P 285 46.1205 91 -0.11 69
IV.MC2.EHZ. 2021-11-28T02:50:36.68 0.6 undecidable manual P 348 49.4172 91 -0.05 47
IV.MMO1.HNZ. 2021-11-28T02:50:36.18 0.3 undecidable manual P 1 47.0196 91 -0.18 69
IV.GIGS.HHZ. 2021-11-28T02:50:35.27 0.6 undecidable manual S 97 21.4674 94 -0.62 43
IV.GAVE.HNZ. 2021-11-28T02:50:35.70 0.3 undecidable manual P 305 41.7249 91 0.15 71
IV.NRCA.HNZ. 2021-11-28T02:50:35.49 0.1 undecidable manual P 338 42.8238 91 -0.23 91
IV.FAGN.HHZ. 2021-11-28T02:50:34.22 0.3 undecidable manual P 136 32.2455 92 0.14 72
MN.AQU.HNZ. 2021-11-28T02:50:34.15 0.3 undecidable manual S 150 15.4734 101 -0.15 72
IV.SMA1.EHZ. 2021-11-28T02:50:34.80 0.6 undecidable manual S 6 17.2716 97 0.02 50
IV.MTRA.EHZ. 2021-11-28T02:50:33.71 0.1 undecidable manual P 12 31.9458 92 -0.33 91
IV.LNSS.HHZ. 2021-11-28T02:50:33.19 0.1 undecidable manual P 303 26.3514 92 0.02 98
IV.FIAM.HHZ. 2021-11-28T02:50:33.59 0.6 undecidable manual P 215 28.0497 92 0.16 49
IV.TERO.HHZ. 2021-11-28T02:50:33.21 0.1 undecidable manual P 55 28.9488 92 -0.36 91
IV.CAMP.HHZ. 2021-11-28T02:50:32.90 0.6 undecidable manual S 50 10.3785 122 -0.13 50
IV.GIGS.HHZ. 2021-11-28T02:50:32.19 0.1 undecidable manual P 97 21.4674 94 -0.24 95
MN.AQU.HNZ. 2021-11-28T02:50:31.63 0.1 undecidable manual P 150 15.4734 101 0.12 99
IV.SMA1.EHZ. 2021-11-28T02:50:31.77 0.1 undecidable manual P 6 17.2716 97 -0.01 100
IV.CAMP.HHZ. 2021-11-28T02:50:30.87 0.1 undecidable manual P 50 10.3785 122 0.09 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:2.0 0.0006232057 0.5008 AML other m 2021-11-28T02:50:37.44
IV.LNSS.HNN. ML:2.0 0.00058539525 0.4992 AML other m 2021-11-28T02:50:37.69
IV.FIAM.HHN. ML:1.4 0.00011354605 1.3584 AML other m 2021-11-28T02:50:37.00
IV.LNSS.HHE. ML:2.2 0.0008209999999999999 0.14 AML other m 2021-11-28T02:50:38.26
IV.LNSS.HNE. ML:2.1 0.0007506406999999999 0.1408 AML other m 2021-11-28T02:50:38.26
IV.FIAM.HNN. ML:1.7 0.00025646314999999996 0.6784 AML other m 2021-11-28T02:50:38.34
IV.TERO.HHN. ML:1.8 0.00028644874999999995 0.2192 AML other m 2021-11-28T02:50:39.53
IV.TERO.HHE. ML:1.6 0.00022175290000000004 0.16 AML other m 2021-11-28T02:50:39.93
IV.TERO.HNE. ML:1.8 0.0002754222 0.16 AML other m 2021-11-28T02:50:39.93
IV.TERO.HNN. ML:1.7 0.0002563838 0.6112 AML other m 2021-11-28T02:50:41.60
IV.FIAM.HHE. ML:1.3 0.00009434999999999999 0.44 AML other m 2021-11-28T02:50:42.66
IV.ARRO.EHE. ML:2.0 0.0002615 0.22 AML other m 2021-11-28T02:50:43.15
IV.ARRO.EHN. ML:1.9 0.00020999999999999998 0.18 AML other m 2021-11-28T02:50:43.18
IV.FAGN.HHN. ML:2.1 0.00063063745 1.36 AML other m 2021-11-28T02:50:44.94
IV.FAGN.HHE. ML:2.1 0.00056585825 0.3616 AML other m 2021-11-28T02:50:45.92
IV.MC2.EHE. ML:2.0 0.00025075674999999997 0.1392 AML other m 2021-11-28T02:50:45.82
IV.MC2.EHN. ML:2.1 0.00031709075 1.24 AML other m 2021-11-28T02:50:46.05
IV.MF5.EHE. ML:1.9 0.00018068622 1.16 AML other m 2021-11-28T02:50:47.15
IV.MF5.EHN. ML:1.9 0.0001667932 0.44 AML other m 2021-11-28T02:50:47.17
IV.FIAM.HNE. ML:2.7 0.0026540525 1.0304 AML other m 2021-11-28T02:50:48.05
IV.GUMA.HHN. ML:2.1 0.00021600000000000002 0.96 AML other m 2021-11-28T02:50:51.63
IV.CESI.HHE. ML:1.5 0.00005259999999999999 1.06 AML other m 2021-11-28T02:50:51.69
IV.GUMA.HHE. ML:2.0 0.000201 0.38 AML other m 2021-11-28T02:50:52.55
IV.CESI.HHN. ML:1.7 0.0000788 0.24 AML other m 2021-11-28T02:50:54.12
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