Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 20-04-2017 and time 05:52:42 (Italy) in region 1 km SW Ussita (MC)

A magnitude ML 2.0 earthquake occured in region: 1 km SW Ussita (MC), on

  • 20-04-2017 03:52:42 (UTC)
  • 20-04-2017 05:52:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9380, 13.1340 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
Ussita MC 1 444 444
Visso MC 4 1107 1551
Castelsantangelo sul Nera MC 5 281 1832
Bolognola MC 10 142 1974
Preci PG 10 724 2698
Acquacanina MC 11 121 2819
Fiastra MC 11 559 3378
Fiordimonte MC 12 202 3580
Monte Cavallo MC 13 145 3725
Pieve Torina MC 14 1458 5183
Pievebovigliana MC 15 866 6049
Montemonaco AP 16 604 6653
Norcia PG 16 4957 11610
Montefortino FM 17 1178 12788
Sarnano MC 18 3264 16052
Sellano PG 18 1079 17131
Muccia MC 18 915 18046
Amandola FM 19 3629 21675
Montegallo AP 19 523 22198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
63 Km E of Perugia (166134 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
95 Km NW of Montesilvano (53738 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 2.0 2017-04-20
03:52:42		 42.9377 13.1342 9 2019-07-19
13:20:51		 Bollettino Sismico Italiano INGV 61837161
Reviewed
Rev100 		ML 2.1 2017-04-20
03:52:43		 42.9395 13.1377 9 2017-04-20
04:02:58		 Sala Sismica INGV-Roma 44118321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-20 03:52:42 ± 0.03
Latitude 42.9377 ± 0.0018
Longitude 13.1342 ± 0.0025
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 61837161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 212
Semi-minor axis of confidence ellipse (meter) 178
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 91
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 59
Number of defining phases 59
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.74284
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 35
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 85
Type of magnitude ML
Reference to an origin 61837161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-10-11 09:49:42

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 29
Type of magnitude ML
Reference to an origin 44118321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-20 04:02:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CING.HHZ. 2017-04-20T03:52:59.04 0.6 undecidable manual S 6 48.8178 50 0.19 45
IV.FOSV.EHZ. 2017-04-20T03:52:59.39 0.6 undecidable manual S 323 49.8168 50 0.27 44
IV.ATCC.EHZ. 2017-04-20T03:52:59.26 0.6 undecidable manual S 305 48.5181 50 0.48 42
IV.MPAG.EHZ. 2017-04-20T03:52:58.14 0.6 undecidable manual P 339 82.4508 50 0.8 35
IV.EL6.EHZ. 2017-04-20T03:52:57.44 0.6 undecidable manual S 357 43.5231 50 0 47
IV.ATPI.EHZ. 2017-04-20T03:52:57.33 0.3 undecidable manual P 314 82.0512 50 0.05 65
IV.ATVO.HHZ. 2017-04-20T03:52:56.40 0.3 undecidable manual P 310 76.7676 50 -0.06 66
IV.MNTP.HNZ. 2017-04-20T03:52:56.40 0.6 undecidable manual S 51 35.0427 50 1.22 31
IV.SNTG.HHZ. 2017-04-20T03:52:55.94 0.6 undecidable manual S 336 38.5281 50 -0.17 46
IV.MURB.HHZ. 2017-04-20T03:52:54.06 0.3 undecidable manual P 306 61.1943 50 0.01 69
IV.ARVD.HHZ. 2017-04-20T03:52:54.47 0.3 undecidable manual P 346 64.0914 50 -0.03 68
IV.ATFO.HHZ. 2017-04-20T03:52:54.73 0.1 undecidable manual P 316 65.8896 50 -0.05 90
IV.T1222.EHZ. 2017-04-20T03:52:54.16 0.3 undecidable manual P 188 59.9955 50 0.28 65
IV.SSFR.HHZ. 2017-04-20T03:52:54.44 0.3 undecidable manual P 333 62.1933 50 0.23 65
IV.T1218.EHZ. 2017-04-20T03:52:53.45 0.6 undecidable manual S 183 29.748 50 -0.31 45
IV.T1217.EHZ. 2017-04-20T03:52:53.67 0.6 undecidable manual S 213 29.9478 50 -0.16 47
IV.T1221.HNE. 2017-04-20T03:52:52.29 0.6 undecidable manual S 250 24.8529 111 0.07 48
IV.T1241.EHZ. 2017-04-20T03:52:52.40 0.6 undecidable manual S 110 25.752 110 -0.12 48
IV.ATCC.EHZ. 2017-04-20T03:52:52.03 0.1 undecidable manual P 305 48.5181 50 -0.08 92
IV.T1244.EHZ. 2017-04-20T03:52:52.14 0.6 undecidable manual S 146 24.0537 111 0.18 47
IV.FOSV.EHZ. 2017-04-20T03:52:52.14 0.1 undecidable manual P 323 49.8168 50 -0.17 91
IV.TERO.HHZ. 2017-04-20T03:52:52.35 0.3 undecidable manual P 132 51.8037 50 -0.26 66
IV.EL6.EHZ. 2017-04-20T03:52:51.06 0.1 undecidable manual P 357 43.5231 50 -0.28 89
IV.CING.HHZ. 2017-04-20T03:52:51.83 0.1 undecidable manual P 6 48.8178 50 -0.32 88
IV.T1212.EHZ. 2017-04-20T03:52:51.33 0.6 undecidable manual S 199 21.867 113 0.06 49
IV.MOMA.HHZ. 2017-04-20T03:52:51.92 0.1 undecidable manual P 252 48.2184 50 -0.14 91
IV.GUMA.HHZ. 2017-04-20T03:52:51.37 0.6 undecidable manual S 50 21.3675 114 0.26 47
IV.SNTG.HHZ. 2017-04-20T03:52:50.26 0.1 undecidable manual P 336 38.5281 50 -0.31 90
IV.CESI.HHZ. 2017-04-20T03:52:50.92 0.6 undecidable manual S 292 20.0688 115 0.23 47
IV.T1299.EHZ. 2017-04-20T03:52:50.33 0.3 undecidable manual P 160 35.742 50 0.19 69
IV.MNTP.HNZ. 2017-04-20T03:52:50.32 0.1 undecidable manual P 51 35.0427 50 0.29 91
IV.T1217.EHZ. 2017-04-20T03:52:49.10 0.1 undecidable manual P 213 29.9478 50 -0.15 94
IV.T1219.EHZ. 2017-04-20T03:52:49.53 0.3 undecidable manual S 321 16.7721 119 -0.14 72
IV.CSP1.EHE. 2017-04-20T03:52:49.88 0.6 undecidable manual S 19 18.0708 118 -0.17 48
IV.MMO1.EHZ. 2017-04-20T03:52:49.31 0.6 undecidable manual S 105 16.2726 120 -0.19 48
IV.T1216.EHZ. 2017-04-20T03:52:48.01 0.6 undecidable manual S 241 10.6782 131 0.07 49
IV.T1221.HNE. 2017-04-20T03:52:48.34 0.1 undecidable manual P 250 24.8529 111 0.02 97
IV.T1241.EHZ. 2017-04-20T03:52:48.28 0.1 positive manual P 110 25.752 110 -0.21 94
IV.NRCA.HHZ. 2017-04-20T03:52:48.06 0.3 undecidable manual S 188 11.6772 129 -0.14 73
IV.T1244.EHZ. 2017-04-20T03:52:48.19 0.1 undecidable manual P 146 24.0537 111 0.02 98
IV.T1218.EHZ. 2017-04-20T03:52:48.95 0.1 undecidable manual P 183 29.748 50 -0.26 92
IV.T1212.EHZ. 2017-04-20T03:52:47.82 0.1 positive manual P 199 21.867 113 0.05 97
IV.FDMO.HHZ. 2017-04-20T03:52:47.88 0.6 undecidable manual S 341 11.5773 129 -0.3 47
IV.GUMA.HHZ. 2017-04-20T03:52:47.84 0.1 positive manual P 50 21.3675 114 0.16 95
IV.FEMA.HNZ. 2017-04-20T03:52:47.10 0.6 undecidable manual S 292 7.3815 142 -0.04 50
IV.T1256.HHZ. 2017-04-20T03:52:47.62 0.6 undecidable manual S 44 10.6782 131 -0.31 47
IV.CESI.HHZ. 2017-04-20T03:52:47.50 0.1 positive manual P 292 20.0688 115 0.06 97
IV.T1245.HHZ. 2017-04-20T03:52:47.92 0.6 undecidable manual S 154 9.9789 133 0.16 49
IV.NRCA.HHZ. 2017-04-20T03:52:46.12 0.1 positive manual P 188 11.6772 129 0.12 98
IV.MC2.EHZ. 2017-04-20T03:52:46.70 0.6 undecidable manual S 123 5.2947 150 -0.05 50
IV.CSP1.EHE. 2017-04-20T03:52:46.96 0.1 undecidable manual P 19 18.0708 118 -0.11 97
IV.MMO1.EHZ. 2017-04-20T03:52:46.72 0.1 positive manual P 105 16.2726 120 -0.03 99
IV.T1219.EHZ. 2017-04-20T03:52:46.81 0.1 undecidable manual P 321 16.7721 119 -0.04 98
IV.T1216.EHZ. 2017-04-20T03:52:46.02 0.1 positive manual P 241 10.6782 131 0.17 97
IV.T1256.HHZ. 2017-04-20T03:52:45.83 0.1 positive manual P 44 10.6782 131 -0.01 100
IV.T1245.HHZ. 2017-04-20T03:52:45.88 0.1 undecidable manual P 154 9.9789 133 0.13 98
IV.MC2.EHZ. 2017-04-20T03:52:45.27 0.1 undecidable manual P 123 5.2947 150 0.11 99
IV.FDMO.HHZ. 2017-04-20T03:52:45.94 0.1 undecidable manual P 341 11.5773 129 -0.05 99
IV.FEMA.HNZ. 2017-04-20T03:52:45.56 0.1 undecidable manual P 292 7.3815 142 0.17 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNE. ML:2.8 0.0112550195 0.24 AML other m 2017-04-20T03:52:47.40
IV.FEMA.HNN. ML:2.5 0.0054192535 0.1408 AML other m 2017-04-20T03:52:47.88
IV.T1256.HHN. ML:2.2 0.0021475030000000003 0.16 AML other m 2017-04-20T03:52:48.17
IV.T1256.HNN. ML:2.3 0.002302746 0.1696 AML other m 2017-04-20T03:52:48.17
IV.T1256.HNE. ML:2.3 0.0026098355 0.1792 AML other m 2017-04-20T03:52:47.89
IV.T1256.HHE. ML:2.3 0.002670596 0.2016 AML other m 2017-04-20T03:52:47.89
IV.T1245.HNN. ML:2.2 0.0019757660000000003 0.5824 AML other m 2017-04-20T03:52:48.54
IV.T1245.HHE. ML:2.0 0.0013774929999999998 0.32 AML other m 2017-04-20T03:52:50.19
IV.T1245.HHN. ML:2.2 0.0020912885 0.5824 AML other m 2017-04-20T03:52:48.26
IV.T1245.HNE. ML:2.1 0.001498513 0.528 AML other m 2017-04-20T03:52:50.61
IV.FDMO.HHE. ML:2.1 0.00147818 0.16 AML other m 2017-04-20T03:52:48.83
IV.FDMO.HHN. ML:2.1 0.0015134025 0.16 AML other m 2017-04-20T03:52:48.53
IV.T1216.EHN. ML:2.2 0.0022151684999999997 0.256 AML other m 2017-04-20T03:52:48.91
IV.T1216.EHE. ML:2.4 0.0032366155 0.272 AML other m 2017-04-20T03:52:48.32
IV.NRCA.HHN. ML:1.8 0.00087037965 0.1568 AML other m 2017-04-20T03:52:49.38
IV.NRCA.HNE. ML:1.8 0.0007660196500000001 0.1312 AML other m 2017-04-20T03:52:49.91
IV.NRCA.HHE. ML:1.8 0.0007986932499999999 0.2016 AML other m 2017-04-20T03:52:50.04
IV.NRCA.HNN. ML:1.8 0.0007940562 0.1216 AML other m 2017-04-20T03:52:48.32
IV.T1219.HNN. ML:2.5 0.0026343865 0.16 AML other m 2017-04-20T03:52:49.78
IV.T1219.HNE. ML:2.3 0.001601976 0.16 AML other m 2017-04-20T03:52:49.82
IV.T1219.EHN. ML:2.5 0.0025911505000000006 0.144 AML other m 2017-04-20T03:52:49.78
IV.T1219.EHE. ML:2.3 0.001635333 0.16 AML other m 2017-04-20T03:52:49.82
IV.CESI.HHN. ML:2.5 0.0024157585 0.1184 AML other m 2017-04-20T03:52:51.03
IV.CESI.HHE. ML:2.2 0.00117263585 0.3008 AML other m 2017-04-20T03:52:51.16
IV.T1212.EHN. ML:1.8 0.00042449885000000006 0.32 AML other m 2017-04-20T03:52:52.49
IV.T1212.HNE. ML:2.0 0.0007557994000000001 0.416 AML other m 2017-04-20T03:52:51.60
IV.T1212.HNN. ML:1.8 0.00043681860000000005 0.336 AML other m 2017-04-20T03:52:52.49
IV.T1212.EHE. ML:2.0 0.0007325307000000001 0.4 AML other m 2017-04-20T03:52:51.60
IV.GUMA.HHE. ML:2.7 0.0036998860000000003 0.2176 AML other m 2017-04-20T03:52:51.66
IV.GUMA.HNN. ML:2.6 0.00269066 0.2304 AML other m 2017-04-20T03:52:51.67
IV.GUMA.HHN. ML:2.5 0.0020234955000000003 0.3616 AML other m 2017-04-20T03:52:54.74
IV.GUMA.HNE. ML:2.6 0.0025186985000000004 0.2112 AML other m 2017-04-20T03:52:51.54
IV.T1241.HNN. ML:1.7 0.000298439 0.32 AML other m 2017-04-20T03:52:56.14
IV.T1241.EHE. ML:1.8 0.00036700145 0.6976 AML other m 2017-04-20T03:52:54.10
IV.T1241.HNE. ML:1.8 0.00039226629999999994 0.7008 AML other m 2017-04-20T03:52:53.74
IV.T1241.EHN. ML:1.7 0.00029864109999999997 0.2592 AML other m 2017-04-20T03:52:55.61
IV.T1218.EHN. ML:1.6 0.00021703135 0.256 AML other m 2017-04-20T03:52:58.45
IV.T1218.HNE. ML:1.8 0.0002995693 0.416 AML other m 2017-04-20T03:52:59.70
IV.T1218.EHE. ML:1.6 0.0001778051 0.304 AML other m 2017-04-20T03:52:55.92
IV.T1218.HNN. ML:1.7 0.00024748165 0.496 AML other m 2017-04-20T03:52:56.66
IV.T1217.HNE. ML:1.7 0.00024218445 0.192 AML other m 2017-04-20T03:52:54.08
IV.T1217.EHN. ML:1.9 0.00042404355000000006 0.272 AML other m 2017-04-20T03:52:54.01
IV.T1217.HNN. ML:2.0 0.00043389915 0.272 AML other m 2017-04-20T03:52:54.01
IV.T1217.EHE. ML:1.6 0.00019186350000000002 0.272 AML other m 2017-04-20T03:52:57.20
IV.SNTG.HHE. ML:1.8 0.0002131461 0.0992 AML other m 2017-04-20T03:52:57.72
IV.SNTG.HHN. ML:1.8 0.00020957615000000002 0.1408 AML other m 2017-04-20T03:52:56.99
IV.SNTG.HNN. ML:1.8 0.0002468043 0.2784 AML other m 2017-04-20T03:53:00.23
IV.SNTG.HNE. ML:1.8 0.00022654375 0.1088 AML other m 2017-04-20T03:52:57.77
IV.T1299.EHE. ML:1.3 0.000080120435 0.4416 AML other m 2017-04-20T03:52:57.29
IV.T1299.EHN. ML:1.5 0.00011300721 0.4384 AML other m 2017-04-20T03:52:59.26
IV.ASSB.HHE. ML:2.0 0.00037518284999999996 0.16 AML other m 2017-04-20T03:52:58.25
IV.ASSB.HHN. ML:2.1 0.00041771975 0.16 AML other m 2017-04-20T03:52:56.88
IV.CING.HHE. ML:1.8 0.00018371335 0.0608 AML other m 2017-04-20T03:53:00.24
IV.CING.HHN. ML:1.8 0.00018149795000000003 0.08 AML other m 2017-04-20T03:53:00.19
IV.MOMA.HHE. ML:1.9 0.00021560505000000002 0.2016 AML other m 2017-04-20T03:53:00.82
IV.MOMA.HHN. ML:1.8 0.00015661282500000002 0.32 AML other m 2017-04-20T03:53:01.36
IV.MOMA.HNE. ML:1.9 0.00020161315 0.2496 AML other m 2017-04-20T03:53:00.56
IV.ATCC.EHN. ML:1.9 0.00023320695 0.32 AML other m 2017-04-20T03:53:01.48
IV.ATCC.EHE. ML:2.2 0.00046616429999999997 0.1216 AML other m 2017-04-20T03:52:59.86
IV.FOSV.EHN. ML:2.4 0.00067036805 0.3616 AML other m 2017-04-20T03:52:59.95
IV.FOSV.EHE. ML:1.8 0.00017327275000000002 0.1792 AML other m 2017-04-20T03:52:59.81
IV.TERO.HNN. ML:1.9 0.00020535949999999996 0.4 AML other m 2017-04-20T03:53:00.33
IV.TERO.HHN. ML:1.9 0.00019971505 0.4192 AML other m 2017-04-20T03:53:00.12
IV.TERO.HNE. ML:1.7 0.00012495472499999999 0.2816 AML other m 2017-04-20T03:52:59.89
IV.TERO.HHE. ML:1.7 0.0001126722 0.2592 AML other m 2017-04-20T03:53:00.02
IV.MURB.HNN. ML:2.4 0.00044526275 0.2784 AML other m 2017-04-20T03:53:06.26
IV.MURB.HHN. ML:2.3 0.0004134813 0.2368 AML other m 2017-04-20T03:53:06.24
IV.MURB.HHE. ML:2.4 0.00048615104999999995 0.2592 AML other m 2017-04-20T03:53:04.21
IV.MURB.HNE. ML:2.4 0.0004440076 0.2496 AML other m 2017-04-20T03:53:04.34
IV.T1222.EHN. ML:1.5 0.000057985545 0.384 AML other m 2017-04-20T03:53:07.15
IV.T1222.EHE. ML:1.7 0.00009937248000000002 0.48 AML other m 2017-04-20T03:53:06.87
IV.SSFR.HHN. ML:2.2 0.00034199079999999997 0.16 AML other m 2017-04-20T03:53:06.99
IV.SSFR.HNE. ML:2.4 0.00043668449999999996 0.1984 AML other m 2017-04-20T03:53:04.52
IV.SSFR.HHE. ML:2.3 0.0004099636 0.24 AML other m 2017-04-20T03:53:04.53
IV.SSFR.HNN. ML:2.2 0.0003359317 0.1504 AML other m 2017-04-20T03:53:04.41
IV.ARVD.HHE. ML:1.7 0.000092291415 0.0992 AML other m 2017-04-20T03:53:05.23
IV.ARVD.HHN. ML:1.6 0.00007366971499999999 0.1408 AML other m 2017-04-20T03:53:04.70
IV.ATFO.HHN. ML:1.6 0.00007760345 0.3424 AML other m 2017-04-20T03:53:04.34
IV.ATFO.HHE. ML:1.7 0.00009787389499999999 0.3584 AML other m 2017-04-20T03:53:09.56
IV.ATVO.HHE. ML:1.7 0.00007321698 0.1984 AML other m 2017-04-20T03:53:08.22
IV.ATVO.HHN. ML:1.7 0.00007792545500000001 0.3584 AML other m 2017-04-20T03:53:10.86
IV.ATPI.EHN. ML:1.6 0.000051206995 0.5024 AML other m 2017-04-20T03:53:13.92
IV.ATPI.EHE. ML:1.7 0.000070118365 0.4 AML other m 2017-04-20T03:53:10.66
IV.MPAG.EHE. ML:1.6 0.000056287015000000006 0.3616 AML other m 2017-04-20T03:53:15.32
IV.MPAG.HNE. ML:2.1 0.000154726345 0.5088 AML other m 2017-04-20T03:53:12.88
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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