Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 04-05-2021 and time 02:42:05 (UTC) in region 5 km E Barete (AQ)

A magnitude ML 1.7 earthquake occured in region: 5 km E Barete (AQ), on

  • 04-05-2021 02:42:05 (UTC)
  • 04-05-2021 04:42:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4690, 13.3330 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
Pizzoli AQ 5 4326 4326
Barete AQ 5 737 5063
Capitignano AQ 6 665 5728
Cagnano Amiterno AQ 9 1369 7097
Montereale AQ 10 2581 9678
Campotosto AQ 10 542 10220
Scoppito AQ 12 3727 13947
L'Aquila AQ 14 69753 83700
Crognaleto TE 15 1297 84997
Borbona RI 17 617 85614
Amatrice RI 18 2657 88271
Pietracamela TE 19 271 88542
Fano Adriano TE 19 296 88838
Lucoli AQ 20 1011 89849
Tornimparte AQ 20 3187 93036

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of L'Aquila (69753 inhabitants)
37 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)
71 Km NE of Tivoli (56533 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
72 Km W of Pescara (121014 inhabitants)
75 Km SE of Foligno (57155 inhabitants)
95 Km NE of Roma (2864731 inhabitants)
98 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 1.7 2021-05-04
02:42:05		 42.4687 13.3332 14 2021-12-29
11:11:59		 Bollettino Sismico Italiano INGV 89964651
Reviewed
Rev100 		ML 1.7 2021-05-04
02:42:05		 42.4715 13.3382 14 2021-05-04
02:48:52		 Sala Sismica INGV-Roma 89754071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-04 02:42:05 ± 0.06
Latitude 42.4687 ± 0.0036
Longitude 13.3332 ± 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 89964651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 530
Semi-minor axis of confidence ellipse (meter) 75
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.91191
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 89964651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-02 09:13:12

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 89754071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-04 02:48:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCRE.HHZ. 2021-05-04T02:42:35.92 3.0 undecidable manual Pn -0.04 0
IV.CESI.HHZ. 2021-05-04T02:42:27.30 0.3 undecidable manual S 330 68.9754 93 0.49 62
IV.INTR.HHZ. 2021-05-04T02:42:27.12 0.3 undecidable manual S 137 69.0753 93 0.28 64
IV.MF5.EHZ. 2021-05-04T02:42:24.55 0.3 undecidable manual S 10 58.497 93 0.53 62
IV.CING.HHZ. 2021-05-04T02:42:23.26 0.3 undecidable manual P 354 101.2209 92 0.31 60
IV.MC2.EHZ. 2021-05-04T02:42:22.29 0.6 undecidable manual S 347 50.5161 94 0.4 43
IV.EL6.EHZ. 2021-05-04T02:42:22.76 0.3 undecidable manual P 349 97.3248 92 0.41 59
IV.PTQR.HHE. 2021-05-04T02:42:21.92 0.6 undecidable manual S 174 49.8168 94 0.21 45
IV.MMO1.EHZ. 2021-05-04T02:42:21.14 0.6 undecidable manual S 359 47.8188 94 -0.02 47
IV.VCEL.EHZ. 2021-05-04T02:42:20.32 0.6 undecidable manual S 101 42.3243 95 0.61 41
IV.NRCA.HHZ. 2021-05-04T02:42:20.12 0.6 undecidable manual S 336 44.2224 95 -0.1 46
IV.GAVE.EHZ. 2021-05-04T02:42:20.00 0.6 undecidable manual S 305 43.623 95 -0.05 47
IV.T0110.HHZ. 2021-05-04T02:42:20.62 0.3 undecidable manual S 126 45.0216 95 0.2 68
IV.ASSB.HHZ. 2021-05-04T02:42:20.25 0.1 undecidable manual P 319 84.0492 92 -0.06 87
IV.MOMA.HHZ. 2021-05-04T02:42:18.64 0.3 undecidable manual P 301 72.5718 92 0.11 66
IV.MNTT.EHZ. 2021-05-04T02:42:18.67 0.1 undecidable manual P 18 69.1752 93 0.65 77
IV.CSP1.EHZ. 2021-05-04T02:42:18.09 0.1 undecidable manual P 351 69.8745 93 -0.04 89
IV.CESI.HHZ. 2021-05-04T02:42:17.78 0.1 undecidable manual P 330 68.9754 93 -0.2 87
IV.FAGN.HHZ. 2021-05-04T02:42:17.29 0.6 undecidable manual S 138 30.4473 98 0.73 40
IV.INTR.HHZ. 2021-05-04T02:42:17.46 0.1 undecidable manual P 137 69.0753 93 -0.54 81
IV.CERT.HHZ. 2021-05-04T02:42:17.18 0.3 undecidable manual P 207 64.491 93 -0.11 67
IV.GUMA.HHZ. 2021-05-04T02:42:17.69 0.3 undecidable manual P 0 65.8896 93 0.18 66
IV.OFFI.HHZ. 2021-05-04T02:42:17.15 0.1 undecidable manual P 29 59.1963 93 0.68 78
IV.LNSS.HHZ. 2021-05-04T02:42:16.01 0.6 undecidable manual S 302 28.1496 99 0.05 48
IV.MF5.EHZ. 2021-05-04T02:42:16.45 0.1 undecidable manual P 10 58.497 93 0.08 91
IV.MTRA.EHE. 2021-05-04T02:42:16.54 0.6 undecidable manual S 9 32.3454 97 -0.53 43
IV.MC2.EHZ. 2021-05-04T02:42:15.18 0.1 undecidable manual P 347 50.5161 94 0.04 93
IV.TERO.HHZ. 2021-05-04T02:42:15.49 0.6 undecidable manual S 52 27.9498 100 -0.41 45
IV.PTQR.HHE. 2021-05-04T02:42:14.77 0.1 undecidable manual P 174 49.8168 94 -0.27 89
IV.T0110.HHZ. 2021-05-04T02:42:14.14 0.1 undecidable manual P 126 45.0216 95 -0.15 92
IV.MMO1.EHZ. 2021-05-04T02:42:14.35 0.1 undecidable manual P 359 47.8188 94 -0.37 87
IV.GAVE.EHZ. 2021-05-04T02:42:13.85 0.1 negative manual P 305 43.623 95 -0.23 91
IV.T1299.HNN. 2021-05-04T02:42:13.51 0.6 undecidable manual S 347 18.87 109 -0.03 49
IV.VCEL.EHZ. 2021-05-04T02:42:13.78 0.1 undecidable manual P 101 42.3243 95 -0.1 93
IV.GIGS.HHE. 2021-05-04T02:42:13.36 0.6 undecidable manual S 95 19.6692 108 -0.39 46
IV.NRCA.HHZ. 2021-05-04T02:42:13.91 0.1 undecidable manual P 336 44.2224 95 -0.27 90
IV.SMA1.EHZ. 2021-05-04T02:42:13.21 0.6 undecidable manual S 1 17.9709 111 -0.11 48
MN.AQU.HHE. 2021-05-04T02:42:12.46 0.6 undecidable manual S 155 13.9749 121 0.09 49
IV.FAGN.HHZ. 2021-05-04T02:42:12.09 0.3 undecidable manual P 138 30.4473 98 0.02 72
IV.CAMP.HHE. 2021-05-04T02:42:11.43 0.6 undecidable manual S 40 9.6792 135 -0.03 50
IV.TERO.HHZ. 2021-05-04T02:42:11.36 0.1 undecidable manual P 52 27.9498 100 -0.32 91
IV.LNSS.HHZ. 2021-05-04T02:42:11.63 0.1 negative manual P 302 28.1496 99 -0.09 96
IV.MTRA.EHE. 2021-05-04T02:42:11.95 0.1 undecidable manual P 9 32.3454 97 -0.41 89
IV.RM33.EHZ. 2021-05-04T02:42:11.62 0.6 undecidable manual S 295 10.6782 131 -0.03 50
IV.T1299.HNN. 2021-05-04T02:42:10.35 0.1 undecidable manual P 347 18.87 109 0.03 99
IV.SMA1.EHZ. 2021-05-04T02:42:10.17 0.1 undecidable manual P 1 17.9709 111 -0.02 99
IV.GIGS.HHE. 2021-05-04T02:42:10.22 0.1 positive manual P 95 19.6692 108 -0.22 95
MN.AQU.HHE. 2021-05-04T02:42:09.70 0.1 undecidable manual P 155 13.9749 121 0.05 98
IV.CAMP.HHE. 2021-05-04T02:42:09.16 0.1 undecidable manual P 40 9.6792 135 0.04 100
IV.RM33.EHZ. 2021-05-04T02:42:09.27 0.1 negative manual P 295 10.6782 131 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:1.7 0.0004775 0.24 AML other m 2021-05-04T02:42:11.68
IV.RM33.HNN. ML:1.7 0.00047349999999999996 0.24 AML other m 2021-05-04T02:42:11.68
IV.RM33.EHE. ML:1.7 0.0004595 0.44 AML other m 2021-05-04T02:42:12.43
IV.RM33.HNE. ML:1.7 0.0004595 0.44 AML other m 2021-05-04T02:42:12.43
IV.SMA1.EHN. ML:1.8 0.0004965000000000001 0.92 AML other m 2021-05-04T02:42:13.15
IV.SMA1.EHE. ML:2.2 0.0011120000000000001 1.8 AML other m 2021-05-04T02:42:14.04
IV.TERO.HHN. ML:1.8 0.000292 0.24 AML other m 2021-05-04T02:42:15.70
IV.TERO.HHE. ML:1.7 0.0002285 0.44 AML other m 2021-05-04T02:42:15.84
IV.TERO.HNE. ML:1.8 0.00029099999999999997 1.52 AML other m 2021-05-04T02:42:15.81
IV.LNSS.HHN. ML:1.8 0.00033650000000000005 0.42 AML other m 2021-05-04T02:42:16.32
IV.LNSS.HHE. ML:1.7 0.0002715 0.96 AML other m 2021-05-04T02:42:16.20
IV.TERO.HNN. ML:1.8 0.000295 0.88 AML other m 2021-05-04T02:42:17.52
IV.FAGN.HHN. ML:1.5 0.000154 0.28 AML other m 2021-05-04T02:42:19.16
IV.NRCA.HHN. ML:1.9 0.000248 0.12 AML other m 2021-05-04T02:42:20.38
IV.NRCA.HHE. ML:2.1 0.000404 0.96 AML other m 2021-05-04T02:42:20.38
IV.GAVE.EHE. ML:1.6 0.0001182 0.6 AML other m 2021-05-04T02:42:20.18
IV.FAGN.HHE. ML:1.6 0.0001895 1.6 AML other m 2021-05-04T02:42:21.84
IV.T0110.HHN. ML:1.7 0.00013900000000000002 1.32 AML other m 2021-05-04T02:42:21.20
IV.T0110.HHE. ML:1.6 0.0001305 1 AML other m 2021-05-04T02:42:21.18
IV.VCEL.EHN. ML:1.7 0.0001705 1.68 AML other m 2021-05-04T02:42:22.08
IV.GAVE.EHN. ML:1.6 0.00010815 0.58 AML other m 2021-05-04T02:42:22.66
IV.VCEL.EHE. ML:1.8 0.0002055 0.84 AML other m 2021-05-04T02:42:23.35
IV.CESI.HHN. ML:1.6 0.0000584 1.52 AML other m 2021-05-04T02:42:27.80
IV.INTR.HHE. ML:1.2 0.0000262 1 AML other m 2021-05-04T02:42:27.46
IV.OFFI.HHN. ML:1.6 0.00008355 0.58 AML other m 2021-05-04T02:42:28.32
IV.CERT.HHE. ML:1.1 0.0000252 0.7 AML other m 2021-05-04T02:42:28.59
IV.GUMA.HHN. ML:1.9 0.000142 0.26 AML other m 2021-05-04T02:42:28.95
IV.MOMA.HHE. ML:1.4 0.000034699999999999996 0.68 AML other m 2021-05-04T02:42:29.53
IV.CESI.HHE. ML:1.2 0.000032149999999999995 0.68 AML other m 2021-05-04T02:42:29.82
IV.CSP1.EHE. ML:1.9 0.0001395 1.06 AML other m 2021-05-04T02:42:29.39
IV.OFFI.HHE. ML:1.5 0.00007205 0.42 AML other m 2021-05-04T02:42:30.03
IV.CSP1.EHN. ML:2.0 0.00015250000000000002 0.38 AML other m 2021-05-04T02:42:30.46
IV.MNTT.EHE. ML:2.2 0.0002505 0.18 AML other m 2021-05-04T02:42:31.41
IV.MNTT.EHN. ML:1.9 0.0001351 0.24 AML other m 2021-05-04T02:42:31.62
IV.INTR.HHN. ML:1.3 0.0000349 0.4 AML other m 2021-05-04T02:42:31.90
IV.GUMA.HHE. ML:1.8 0.0000986 0.88 AML other m 2021-05-04T02:42:31.50
IV.MOMA.HHN. ML:1.3 0.000029949999999999996 0.62 AML other m 2021-05-04T02:42:31.65
IV.ASSB.HHN. ML:1.4 0.0000353 0.14 AML other m 2021-05-04T02:42:33.72
IV.CERT.HHN. ML:1.2 0.0000311 0.36 AML other m 2021-05-04T02:42:34.12
IV.ASSB.HHE. ML:1.3 0.000027500000000000004 0.54 AML other m 2021-05-04T02:42:34.69
IV.CING.HHE. ML:1.5 0.0000279 0.54 AML other m 2021-05-04T02:42:37.94
IV.CING.HHN. ML:1.3 0.000021900000000000004 0.48 AML other m 2021-05-04T02:42:38.37
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