Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 17-04-2020 and time 20:08:19 (Italy) in region 5 km N Aielli (AQ)

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

  • 17-04-2020 18:08:19 (UTC)
  • 17-04-2020 20:08:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.1250, 13.5810 at 9 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
Aielli AQ 5 1475 1475
Celano AQ 5 11017 12492
Ovindoli AQ 5 1227 13719
Cerchio AQ 7 1635 15354
Collarmele AQ 8 894 16248
Secinaro AQ 9 359 16607
Gagliano Aterno AQ 10 254 16861
Tione degli Abruzzi AQ 10 310 17171
Rocca di Mezzo AQ 11 1526 18697
Fontecchio AQ 12 369 19066
Castelvecchio Subequo AQ 12 982 20048
Pescina AQ 13 4133 24181
Acciano AQ 13 327 24508
Molina Aterno AQ 13 386 24894
Castel di Ieri AQ 13 303 25197
San Benedetto dei Marsi AQ 14 3909 29106
Fagnano Alto AQ 14 418 29524
Rocca di Cambio AQ 15 533 30057
Massa d'Albe AQ 16 1476 31533
Caporciano AQ 16 230 31763
Avezzano AQ 16 42515 74278
Villa Sant'Angelo AQ 17 424 74702
Goriano Sicoli AQ 17 569 75271
San Benedetto in Perillis AQ 17 113 75384
Prata d'Ansidonia AQ 17 496 75880
Navelli AQ 18 554 76434
Magliano de' Marsi AQ 18 3690 80124
San Demetrio ne' Vestini AQ 18 1854 81978
Ortona dei Marsi AQ 19 542 82520
Trasacco AQ 19 6246 88766
Sant'Eusanio Forconese AQ 19 394 89160
Cocullo AQ 19 230 89390
Raiano AQ 19 2815 92205
San Pio delle Camere AQ 19 661 92866
Vittorito AQ 20 873 93739
Ortucchio AQ 20 1860 95599
Collepietro AQ 20 237 95836
Ocre AQ 20 1167 97003

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SE of L'Aquila (69753 inhabitants)
55 Km W of Chieti (51815 inhabitants)
60 Km S of Teramo (54892 inhabitants)
64 Km SW of Montesilvano (53738 inhabitants)
64 Km SW of Pescara (121014 inhabitants)
67 Km E of Tivoli (56533 inhabitants)
72 Km E of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Velletri (53303 inhabitants)
91 Km SE of Terni (111501 inhabitants)
92 Km NE of Latina (125985 inhabitants)
94 Km E of Roma (2864731 inhabitants)
97 Km NE of Aprilia (73446 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 2020-04-17
18:08:19		 42.1252 13.5812 9 2020-07-18
21:08:35		 Bollettino Sismico Italiano INGV 78911391
Reviewed
Rev100 		ML 1.7 2020-04-17
18:08:19		 42.125 13.5817 10 2020-04-17
18:14:59		 Sala Sismica INGV-Roma 78328351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-17 18:08:19 ± 0.06
Latitude 42.1252 ± 0.0027
Longitude 13.5812 ± 0.0049
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 78911391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 257
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.69608
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 78911391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-05-07 08:34:23

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 78328351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-17 18:14:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCRV.HHZ. 2020-04-17T18:08:55.43 3.0 undecidable manual Pg 5.2 0
IV.MIDA.HHZ. 2020-04-17T18:08:43.92 0.6 undecidable manual S 134 77.2671 50 0.62 39
IV.TERO.HHZ. 2020-04-17T18:08:37.97 0.3 undecidable manual S 2 55.2003 50 0.54 62
IV.CERT.HHZ. 2020-04-17T18:08:37.56 0.6 undecidable manual S 249 53.1024 50 0.69 39
IV.MMO1.EHZ. 2020-04-17T18:08:36.70 3.0 undecidable manual P 1.08 0
IV.LPEL.HHZ. 2020-04-17T18:08:36.12 0.3 undecidable manual S 100 50.3163 50 0 71
IV.POFI.HHZ. 2020-04-17T18:08:35.61 0.3 undecidable manual S 167 46.5201 50 0.51 64
IV.NRCA.HHZ. 2020-04-17T18:08:35.35 3.0 positive manual P -0.17 0
IV.VCEL.EHZ. 2020-04-17T18:08:33.29 0.3 undecidable manual S 35 36.741 50 0.81 58
IV.FIAM.HHZ. 2020-04-17T18:08:33.83 0.3 undecidable manual S 293 41.3253 50 0.12 70
IV.MIDA.HHZ. 2020-04-17T18:08:32.99 0.1 positive manual P 134 77.2671 50 -0.36 83
IV.GIGS.HHZ. 2020-04-17T18:08:32.49 0.3 undecidable manual S 359 36.4413 50 0.09 71
IV.GIUL.HHZ. 2020-04-17T18:08:32.00 0.1 undecidable manual P 203 68.4759 50 0.01 91
IV.RNI2.HHZ. 2020-04-17T18:08:31.85 0.1 undecidable manual P 135 66.4779 50 0.17 89
IV.CERA.HHZ. 2020-04-17T18:08:31.73 0.1 undecidable manual P 148 68.7756 50 -0.31 86
IV.VVLD.HHZ. 2020-04-17T18:08:30.31 0.3 undecidable manual S 173 28.5492 107 0.18 71
IV.SMA1.EHZ. 2020-04-17T18:08:30.73 0.1 undecidable manual P 340 59.5959 50 0.1 91
IV.INTR.HHZ. 2020-04-17T18:08:30.52 0.3 undecidable manual S 115 29.4483 107 0.09 72
IV.RM33.EHZ. 2020-04-17T18:08:29.13 0.1 undecidable manual P 325 52.1034 50 -0.35 87
IV.LRP.EHZ. 2020-04-17T18:08:29.13 0.1 undecidable manual P 180 53.0025 50 -0.49 85
IV.TERO.HHZ. 2020-04-17T18:08:29.84 0.1 negative manual P 2 55.2003 50 -0.12 91
IV.CERT.HHZ. 2020-04-17T18:08:29.49 0.1 undecidable manual P 249 53.1024 50 -0.14 91
IV.GUAR.HNN. 2020-04-17T18:08:28.16 0.3 undecidable manual P 211 42.8238 50 0.11 70
IV.POFI.HHZ. 2020-04-17T18:08:28.32 0.1 positive manual P 167 46.5201 50 -0.29 89
IV.LPEL.HHZ. 2020-04-17T18:08:28.88 0.1 undecidable manual P 100 50.3163 50 -0.32 88
IV.VCEL.EHZ. 2020-04-17T18:08:27.16 0.1 undecidable manual P 35 36.741 50 0.06 96
IV.FIAM.HHZ. 2020-04-17T18:08:27.57 0.1 positive manual P 293 41.3253 50 -0.24 91
IV.T0110.HHZ. 2020-04-17T18:08:27.56 0.1 undecidable manual S 54 19.7691 114 0.29 94
IV.PTQR.HHZ. 2020-04-17T18:08:27.50 0.3 undecidable manual S 232 18.7701 115 0.55 66
IV.FAGN.HHZ. 2020-04-17T18:08:26.04 0.1 undecidable manual S 1 15.5733 120 0.06 99
IV.GIGS.HHZ. 2020-04-17T18:08:26.62 0.1 undecidable manual P 359 36.4413 50 -0.43 88
IV.INTR.HHZ. 2020-04-17T18:08:25.65 0.1 positive manual P 115 29.4483 107 -0.26 93
MN.AQU.HNN. 2020-04-17T18:08:25.31 0.3 undecidable manual P 330 29.2485 107 -0.56 65
IV.VVLD.HHZ. 2020-04-17T18:08:25.74 0.1 positive manual P 173 28.5492 107 0 98
IV.PTQR.HHZ. 2020-04-17T18:08:24.10 0.1 positive manual P 232 18.7701 115 0.19 96
IV.T0110.HHZ. 2020-04-17T18:08:24.08 0.1 negative manual P 54 19.7691 114 -0.01 99
IV.FAGN.HHZ. 2020-04-17T18:08:23.36 0.1 negative manual P 1 15.5733 120 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FAGN.HHN. ML:2.6 0.0038200000000000005 0.3 AML other m 2020-04-17T18:08:26.39
IV.PTQR.HHN. ML:1.6 0.00029749999999999997 1.68 AML other m 2020-04-17T18:08:27.05
IV.PTQR.HHE. ML:1.8 0.00045 1.48 AML other m 2020-04-17T18:08:28.00
IV.FAGN.HHE. ML:2.6 0.004295 0.42 AML other m 2020-04-17T18:08:28.45
IV.T0110.HHN. ML:2.0 0.0007875 1.34 AML other m 2020-04-17T18:08:29.23
IV.T0110.HHE. ML:1.9 0.0005914999999999999 0.36 AML other m 2020-04-17T18:08:30.19
IV.VVLD.HHN. ML:1.7 0.000242 0.36 AML other m 2020-04-17T18:08:30.48
IV.VVLD.HNE. ML:1.8 0.0003465 0.44 AML other m 2020-04-17T18:08:31.86
IV.VVLD.HNN. ML:1.8 0.0002965 1.06 AML other m 2020-04-17T18:08:32.53
IV.INTR.HHE. ML:2.0 0.0004485 1.22 AML other m 2020-04-17T18:08:32.97
IV.INTR.HNE. ML:2.0 0.0004735 1.22 AML other m 2020-04-17T18:08:32.98
IV.GIGS.HHN. ML:1.5 0.00011449999999999999 0.34 AML other m 2020-04-17T18:08:33.21
IV.GIGS.HHE. ML:1.1 0.00005075 1.62 AML other m 2020-04-17T18:08:33.90
IV.VVLD.HHE. ML:1.8 0.000363 0.36 AML other m 2020-04-17T18:08:33.33
IV.FIAM.HHE. ML:1.5 0.0001175 0.42 AML other m 2020-04-17T18:08:35.53
IV.VCEL.EHN. ML:2.0 0.000354 0.38 AML other m 2020-04-17T18:08:35.45
IV.INTR.HHN. ML:2.0 0.0004865 0.46 AML other m 2020-04-17T18:08:35.62
IV.INTR.HNN. ML:2.0 0.000512 0.46 AML other m 2020-04-17T18:08:35.62
IV.FIAM.HHN. ML:1.5 0.0000983 1.62 AML other m 2020-04-17T18:08:36.03
IV.VCEL.EHE. ML:2.0 0.0003725 0.6 AML other m 2020-04-17T18:08:36.58
IV.POFI.HHE. ML:1.4 0.0000651 0.3 AML other m 2020-04-17T18:08:38.28
IV.LPEL.HHE. ML:1.9 0.00020600000000000002 0.86 AML other m 2020-04-17T18:08:38.31
IV.TERO.HHN. ML:1.4 0.0000626 0.46 AML other m 2020-04-17T18:08:38.24
IV.LRP.EHN. ML:1.1 0.000030550000000000004 0.48 AML other m 2020-04-17T18:08:38.70
IV.LRP.EHE. ML:1.6 0.00009445 0.38 AML other m 2020-04-17T18:08:39.08
IV.LPEL.HHN. ML:1.8 0.000185 0.5 AML other m 2020-04-17T18:08:39.28
IV.CERT.HHN. ML:1.5 0.00007905000000000001 0.3 AML other m 2020-04-17T18:08:39.78
IV.TERO.HHE. ML:1.6 0.00008415 1.58 AML other m 2020-04-17T18:08:39.92
IV.POFI.HHN. ML:1.2 0.0000435 1.1 AML other m 2020-04-17T18:08:40.71
IV.CERT.HHE. ML:1.5 0.00008205000000000002 0.32 AML other m 2020-04-17T18:08:41.35
IV.RM33.EHE. ML:1.9 0.000193 1.32 AML other m 2020-04-17T18:08:41.96
IV.RM33.EHN. ML:1.8 0.000176 1.1 AML other m 2020-04-17T18:08:42.68
IV.GIUL.HHE. ML:1.3 0.00003305 0.48 AML other m 2020-04-17T18:08:42.84
IV.SMA1.EHN. ML:1.7 0.0001074 0.52 AML other m 2020-04-17T18:08:42.44
IV.SMA1.EHE. ML:1.7 0.00009795000000000001 1.58 AML other m 2020-04-17T18:08:45.17
IV.CERA.HHE. ML:1.7 0.0000904 0.56 AML other m 2020-04-17T18:08:47.77
IV.CERA.HHN. ML:1.7 0.0000812 1.62 AML other m 2020-04-17T18:08:48.98
IV.NRCA.HHE. ML:1.5 0.000041599999999999995 0.44 AML other m 2020-04-17T18:08:48.52
IV.MIDA.HHE. ML:1.7 0.00007265 1.34 AML other m 2020-04-17T18:08:49.25
IV.GIUL.HHN. ML:1.4 0.0000388 1.46 AML other m 2020-04-17T18:08:49.99
IV.MIDA.HHN. ML:1.6 0.000053150000000000004 0.68 AML other m 2020-04-17T18:08:49.03
IV.RNI2.HHE. ML:1.8 0.00010300000000000001 0.74 AML other m 2020-04-17T18:08:50.56
IV.NRCA.HHN. ML:1.3 0.0000246 0.42 AML other m 2020-04-17T18:08:50.57
IV.RNI2.HNE. ML:1.9 0.0001315 1.14 AML other m 2020-04-17T18:08:52.71
IV.RNI2.HHN. ML:1.7 0.00008385 0.88 AML other m 2020-04-17T18:08:52.92
IV.RNI2.HNN. ML:1.7 0.00008979999999999999 0.82 AML other m 2020-04-17T18:08:52.52
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