Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 09-08-2020 and time 11:02:27 (UTC) in region 5 km E Avezzano (AQ)

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

  • 09-08-2020 11:02:27 (UTC)
  • 09-08-2020 13:02:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.0440, 13.4800 at 15 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
Avezzano AQ 5 42515 42515
Celano AQ 7 11017 53532
Luco dei Marsi AQ 9 6079 59611
Aielli AQ 10 1475 61086
Massa d'Albe AQ 10 1476 62562
Cerchio AQ 10 1635 64197
Ovindoli AQ 11 1227 65424
Trasacco AQ 11 6246 71670
Magliano de' Marsi AQ 11 3690 75360
Capistrello AQ 11 5252 80612
Scurcola Marsicana AQ 12 2824 83436
Collarmele AQ 12 894 84330
San Benedetto dei Marsi AQ 13 3909 88239
Canistro AQ 13 995 89234
Castellafiume AQ 13 1106 90340
Civitella Roveto AQ 15 3268 93608
Pescina AQ 15 4133 97741
Ortucchio AQ 17 1860 99601
Cappadocia AQ 17 528 100129
Civita d'Antino AQ 18 979 101108
Rocca di Mezzo AQ 19 1526 102634
Tagliacozzo AQ 19 6889 109523
Collelongo AQ 20 1233 110756
Morino AQ 20 1448 112204

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km S of L'Aquila (69753 inhabitants)
57 Km E of Tivoli (56533 inhabitants)
62 Km E of Guidonia Montecelio (88673 inhabitants)
66 Km SW of Chieti (51815 inhabitants)
70 Km NE of Velletri (53303 inhabitants)
71 Km S of Teramo (54892 inhabitants)
76 Km SW of Montesilvano (53738 inhabitants)
77 Km SW of Pescara (121014 inhabitants)
80 Km NE of Latina (125985 inhabitants)
84 Km E of Roma (2864731 inhabitants)
85 Km NE of Aprilia (73446 inhabitants)
89 Km SE of Terni (111501 inhabitants)
91 Km E of Pomezia (62966 inhabitants)
97 Km NE of Anzio (54211 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 2020-08-09
11:02:27		 42.0445 13.4798 15 2020-11-19
12:37:06		 Bollettino Sismico Italiano INGV 84209991
Reviewed
Rev100 		ML 1.8 2020-08-09
11:02:28		 42.0477 13.4883 13 2020-08-09
11:12:07		 Sala Sismica INGV-Roma 81807571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-09 11:02:27 ± 0.12
Latitude 42.0445 ± 0.0045
Longitude 13.4798 ± 0.0097
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84209991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 633
Semi-minor axis of confidence ellipse (meter) 491
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 106
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.06295
Epicentral distance of station farthest from the epicenter (degree) 0.70327
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 29
Type of magnitude ML
Reference to an origin 84209991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-28 12:10:30

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 24
Type of magnitude ML
Reference to an origin 81807571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-09 11:12:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCEL.EHZ. 2020-08-09T11:02:44.80 0.3 undecidable manual S 37 48.8178 96 1.27 46
IV.LRP.EHZ. 2020-08-09T11:02:43.40 0.6 undecidable manual S 169 44.9217 97 0.9 37
IV.GIGS.HHN. 2020-08-09T11:02:43.40 0.3 undecidable manual S 10 46.0206 97 0.63 60
IV.MIDA.HHZ. 2020-08-09T11:02:41.22 0.3 undecidable manual P 125 78.0663 94 -0.22 63
IV.FIAM.HHZ. 2020-08-09T11:02:40.70 0.3 undecidable manual S 310 38.8278 99 -0.17 70
MN.AQU.HNE. 2020-08-09T11:02:39.70 0.6 undecidable manual S 350 34.8429 100 -0.14 47
IV.GUAR.HHZ. 2020-08-09T11:02:39.10 0.3 undecidable manual S 207 30.9468 102 0.28 68
IV.INTR.HHZ. 2020-08-09T11:02:39.70 0.3 undecidable manual S 96 35.1426 100 -0.22 67
IV.T0110.HHZ. 2020-08-09T11:02:39.10 0.3 undecidable manual S 50 31.8459 102 0.05 72
IV.GIUL.HHZ. 2020-08-09T11:02:38.35 0.1 undecidable manual P 199 57.0984 95 0.13 90
IV.VCEL.EHZ. 2020-08-09T11:02:37.24 0.3 undecidable manual P 37 48.8178 96 0.28 67
IV.FAGN.HHZ. 2020-08-09T11:02:37.40 0.3 undecidable manual S 19 25.9518 106 -0.13 71
IV.LRP.EHZ. 2020-08-09T11:02:36.49 0.3 undecidable manual P 169 44.9217 97 0.13 69
IV.GIGS.HHN. 2020-08-09T11:02:36.43 0.1 undecidable manual P 10 46.0206 97 -0.09 92
IV.VVLD.HHZ. 2020-08-09T11:02:36.40 0.3 undecidable manual S 149 22.755 110 -0.3 68
IV.POFI.HHZ. 2020-08-09T11:02:35.58 0.3 undecidable manual P 152 41.0256 98 -0.19 68
IV.FIAM.HHZ. 2020-08-09T11:02:35.23 0.3 undecidable manual P 310 38.8278 99 -0.19 69
IV.T0110.HHZ. 2020-08-09T11:02:34.26 0.1 undecidable manual P 50 31.8459 102 -0.11 93
MN.AQU.HNE. 2020-08-09T11:02:34.70 0.6 undecidable manual P 350 34.8429 100 -0.13 47
IV.GUAR.HHZ. 2020-08-09T11:02:34.40 0.1 undecidable manual P 207 30.9468 102 0.16 94
IV.INTR.HHZ. 2020-08-09T11:02:34.55 0.1 undecidable manual P 96 35.1426 100 -0.32 88
IV.PTQR.HHZ. 2020-08-09T11:02:33.00 0.6 undecidable manual S 249 6.993 150 -0.38 47
IV.FAGN.HHZ. 2020-08-09T11:02:33.37 0.1 positive manual P 19 25.9518 106 -0.12 95
IV.VVLD.HHZ. 2020-08-09T11:02:32.80 0.1 undecidable manual P 149 22.755 110 -0.21 93
IV.PTQR.HHZ. 2020-08-09T11:02:31.13 0.1 negative manual P 249 6.993 150 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PTQR.HHE. ML:0.0 0.001788014 0.096 AML other m 2020-08-09T11:02:33.51
IV.VVLD.HHN. ML:0.0 0.00014205245 0.1984 AML other m 2020-08-09T11:02:42.12
IV.VVLD.HHE. ML:0.0 0.00024050445 0.3584 AML other m 2020-08-09T11:02:39.37
IV.FAGN.HHN. ML:0.0 0.0009219002000000001 0.2624 AML other m 2020-08-09T11:02:39.78
IV.FAGN.HHE. ML:0.0 0.0013748710000000002 0.3392 AML other m 2020-08-09T11:02:39.86
IV.GUAR.HHE. ML:0.0 0.00035385595000000003 0.256 AML other m 2020-08-09T11:02:40.05
IV.GUAR.HHN. ML:0.0 0.00042038805 0.4224 AML other m 2020-08-09T11:02:39.69
IV.T0110.HHE. ML:0.0 0.00055740535 0.2624 AML other m 2020-08-09T11:02:40.62
IV.INTR.HHE. ML:0.0 0.0001920042 0.1984 AML other m 2020-08-09T11:02:40.67
IV.INTR.HHN. ML:0.0 0.00029943875 0.2624 AML other m 2020-08-09T11:02:41.31
IV.T0110.HHN. ML:0.0 0.00040003330000000004 0.32 AML other m 2020-08-09T11:02:44.39
IV.LRP.EHN. ML:0.0 0.000021742945 0.3584 AML other m 2020-08-09T11:02:44.79
IV.FIAM.HHN. ML:0.0 0.000063352775 0.3008 AML other m 2020-08-09T11:02:44.95
IV.FIAM.HHE. ML:0.0 0.000050153585 0.6592 AML other m 2020-08-09T11:02:52.47
IV.POFI.HHE. ML:0.0 0.000045104875 0.3392 AML other m 2020-08-09T11:02:46.35
IV.POFI.HHN. ML:0.0 0.000041389315 0.2816 AML other m 2020-08-09T11:02:47.52
IV.VCEL.EHE. ML:0.0 0.00030568020000000003 0.32 AML other m 2020-08-09T11:02:47.47
IV.GIUL.HHN. ML:0.0 0.00008385233999999999 0.256 AML other m 2020-08-09T11:02:48.02
IV.VCEL.EHN. ML:0.0 0.00041503050000000005 0.3392 AML other m 2020-08-09T11:02:48.30
IV.LRP.EHE. ML:0.0 0.00009784196500000001 0.3008 AML other m 2020-08-09T11:02:49.35
IV.GIUL.HHE. ML:0.0 0.00008632382499999999 0.4608 AML other m 2020-08-09T11:02:51.12
IV.MIDA.HHE. ML:1.5 0.000043049999999999996 0.34 AML other m 2020-08-09T11:02:53.30
IV.MIDA.HHN. ML:1.6 0.00004825 1.5 AML other m 2020-08-09T11:02:54.05
IV.PTQR.HHN. ML:2.3 0.0019572645 0.1984 AML other m 2020-08-09T11:02:33.39
IV.VVLD.HNN. ML:1.4 0.000145223345 0.192 AML other m 2020-08-09T11:02:38.80
IV.VVLD.HNE. ML:1.5 0.0001938059 0.352 AML other m 2020-08-09T11:02:39.64
IV.INTR.HNN. ML:1.9 0.00029108614999999997 0.256 AML other m 2020-08-09T11:02:41.31
IV.INTR.HNE. ML:1.7 0.00019309670000000002 0.2112 AML other m 2020-08-09T11:02:40.57
IV.FIAM.HNN. ML:1.8 0.0001910523 0.7232 AML other m 2020-08-09T11:02:45.42
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