Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 04-02-2020 and time 01:22:02 (Italy) in region 1 km S Amatrice (RI)

A magnitude ML 2.1 earthquake occured in region: 1 km S Amatrice (RI), on

  • 04-02-2020 00:22:02 (UTC)
  • 04-02-2020 01:22:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6200, 13.2900 at 11 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
Amatrice RI 1 2657 2657
Accumoli RI 9 667 3324
Campotosto AQ 10 542 3866
Cittareale RI 11 482 4348
Capitignano AQ 11 665 5013
Montereale AQ 11 2581 7594
Arquata del Tronto AP 17 1178 8772
Borbona RI 17 617 9389
Crognaleto TE 18 1297 10686
Cortino TE 18 656 11342
Cagnano Amiterno AQ 19 1369 12711
Barete AQ 19 737 13448
Posta RI 19 694 14142
Acquasanta Terme AP 19 2916 17058

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km N of L'Aquila (69753 inhabitants)
34 Km W of Teramo (54892 inhabitants)
53 Km E of Terni (111501 inhabitants)
61 Km SE of Foligno (57155 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
78 Km W of Pescara (121014 inhabitants)
78 Km W of Chieti (51815 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
100 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 2.1 2020-02-04
00:22:02		 42.6197 13.2895 11 2020-07-18
21:08:30		 Bollettino Sismico Italiano INGV 77836111
Reviewed
Rev100 		ML 1.9 2020-02-04
00:22:01		 42.6202 13.2918 13 2020-02-04
00:28:32		 Sala Sismica INGV-Roma 76178871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-04 00:22:02 ± 0.08
Latitude 42.6197 ± 0.0045
Longitude 13.2895 ± 0.0061
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77836111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 560
Semi-minor axis of confidence ellipse (meter) 18
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.72216
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 45
Type of magnitude ML
Reference to an origin 77836111
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-03 15:17:36

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 76178871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-04 00:28:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2020-02-04T00:22:45.78 3.0 undecidable manual Sn -9.99 0
IV.GUMA.HHZ. 2020-02-04T00:22:18.73 0.3 undecidable manual S 4 49.3173 50 0.97 51
IV.MF5.EHZ. 2020-02-04T00:22:17.17 0.3 undecidable manual S 19 43.1235 50 1.05 50
IV.EL6.EHZ. 2020-02-04T00:22:15.94 0.3 undecidable manual P 349 80.1642 50 0.02 65
IV.FIAM.HHZ. 2020-02-04T00:22:15.53 0.6 undecidable manual S 200 41.4252 50 -0.14 46
IV.GAVE.EHZ. 2020-02-04T00:22:13.26 0.6 undecidable manual S 284 33.2445 50 -0.22 46
IV.MC2.EHZ. 2020-02-04T00:22:13.63 0.6 undecidable manual S 346 33.4443 50 0.11 46
IV.T0110.HHZ. 2020-02-04T00:22:12.88 0.6 undecidable manual P 137 58.7967 50 0.25 43
IV.MMO1.EHZ. 2020-02-04T00:22:12.73 0.3 undecidable manual S 6 31.1466 50 -0.2 69
IV.CESX.HHZ. 2020-02-04T00:22:12.06 0.6 undecidable manual P 269 57.3981 50 -0.34 43
IV.MOMA.HHZ. 2020-02-04T00:22:12.82 0.3 undecidable manual P 289 62.0934 50 -0.31 64
IV.MNTT.EHZ. 2020-02-04T00:22:12.68 0.3 undecidable manual P 27 55.0005 50 0.64 59
MN.AQU.HNN. 2020-02-04T00:22:12.86 0.6 undecidable manual S 162 30.9468 50 0 47
IV.GIGS.HHZ. 2020-02-04T00:22:12.09 0.3 undecidable manual S 128 29.6481 50 -0.42 66
IV.TERO.HHZ. 2020-02-04T00:22:11.05 0.3 undecidable manual S 89 25.6521 50 -0.41 66
IV.CSP1.EHZ. 2020-02-04T00:22:11.50 0.3 undecidable manual P 353 52.8027 50 -0.2 66
IV.NRCA.HHZ. 2020-02-04T00:22:11.60 0.3 undecidable manual S 329 27.6501 50 -0.4 67
IV.GUMA.HHZ. 2020-02-04T00:22:11.31 0.3 undecidable manual P 4 49.3173 50 0.16 67
IV.CESI.HHZ. 2020-02-04T00:22:11.58 0.3 undecidable manual P 324 53.0025 50 -0.14 67
IV.OFFI.HHZ. 2020-02-04T00:22:11.59 0.1 positive manual P 43 47.619 50 0.7 77
IV.VCEL.EHZ. 2020-02-04T00:22:11.78 0.3 undecidable manual P 119 51.5151 50 0.28 65
IV.FDMO.HHZ. 2020-02-04T00:22:10.92 0.3 undecidable manual P 340 49.1175 50 -0.2 67
IV.FAGN.HHZ. 2020-02-04T00:22:10.78 0.6 undecidable manual P 148 46.0206 50 0.12 45
IV.MF5.EHZ. 2020-02-04T00:22:10.48 0.1 positive manual P 19 43.1235 50 0.28 88
IV.ARRO.EHZ. 2020-02-04T00:22:09.79 3.0 positive manual Pg -0.13 0
IV.FIAM.HHZ. 2020-02-04T00:22:09.61 0.1 positive manual P 200 41.4252 50 -0.34 89
IV.RM33.HNZ. 2020-02-04T00:22:09.96 0.3 undecidable manual S 207 13.6752 129 1.73 34
IV.LNSS.HHZ. 2020-02-04T00:22:09.59 0.3 undecidable manual S 265 20.4684 50 -0.47 68
IV.MC2.EHZ. 2020-02-04T00:22:08.45 0.3 undecidable manual P 346 33.4443 50 -0.25 68
MN.AQU.HNN. 2020-02-04T00:22:08.25 0.6 undecidable manual P 162 30.9468 50 -0.08 47
IV.MMO1.EHZ. 2020-02-04T00:22:08.15 0.1 positive manual P 6 31.1466 50 -0.21 92
IV.MTRA.EHZ. 2020-02-04T00:22:08.85 0.3 undecidable manual S 30 17.5713 50 -0.44 67
IV.GAVE.EHZ. 2020-02-04T00:22:08.33 0.1 positive manual P 284 33.2445 50 -0.35 90
IV.RM33.HNZ. 2020-02-04T00:22:07.52 0.1 positive manual P 207 13.6752 129 1.87 42
IV.GIGS.HHZ. 2020-02-04T00:22:07.83 0.1 negative manual P 128 29.6481 50 -0.29 91
IV.CAMP.HHZ. 2020-02-04T00:22:07.99 0.3 undecidable manual S 134 13.4754 129 -0.17 71
IV.TERO.HHZ. 2020-02-04T00:22:07.21 0.1 undecidable manual P 89 25.6521 50 -0.3 91
IV.NRCA.HHZ. 2020-02-04T00:22:07.50 0.1 negative manual P 329 27.6501 50 -0.33 90
IV.MTRA.EHZ. 2020-02-04T00:22:06.05 0.1 undecidable manual P 30 17.5713 50 -0.21 94
IV.SMA1.EHZ. 2020-02-04T00:22:06.29 0.1 undecidable manual S 72 3.8961 160 0.11 100
IV.LNSS.HHZ. 2020-02-04T00:22:06.48 0.1 positive manual P 265 20.4684 50 -0.23 94
IV.T1299.HNN. 2020-02-04T00:22:05.98 0.3 undecidable manual S 340 1.6983 171 -0.01 74
IV.CAMP.HHZ. 2020-02-04T00:22:05.59 0.1 undecidable manual P 134 13.4754 129 -0.02 98
IV.T1299.HNN. 2020-02-04T00:22:04.48 0.1 negative manual P 340 1.6983 171 0.12 99
IV.SMA1.EHZ. 2020-02-04T00:22:04.63 0.1 negative manual P 72 3.8961 160 0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:2.3 0.0031656245 0.34 AML other m 2020-02-04T00:22:06.74
IV.SMA1.EHE. ML:2.6 0.006493136500000001 0.3 AML other m 2020-02-04T00:22:06.64
IV.MTRA.HNE. ML:2.5 0.002426179 0.15 AML other m 2020-02-04T00:22:09.30
IV.MTRA.HNN. ML:2.6 0.003336019 0.22 AML other m 2020-02-04T00:22:09.11
IV.MTRA.EHN. ML:2.6 0.0033346965 0.22 AML other m 2020-02-04T00:22:09.12
IV.MTRA.EHE. ML:2.5 0.0023849559999999997 0.16 AML other m 2020-02-04T00:22:09.31
IV.LNSS.HNE. ML:2.0 0.00077256585 0.16 AML other m 2020-02-04T00:22:09.84
IV.LNSS.HHE. ML:2.0 0.00079814355 0.16 AML other m 2020-02-04T00:22:09.84
IV.LNSS.HHN. ML:2.0 0.00073868255 0.16 AML other m 2020-02-04T00:22:10.35
IV.LNSS.HNN. ML:1.9 0.00064290795 0.16 AML other m 2020-02-04T00:22:10.35
IV.TERO.HHN. ML:2.1 0.0007011749 0.16 AML other m 2020-02-04T00:22:11.11
IV.TERO.HHE. ML:2.1 0.0006808497499999999 0.16 AML other m 2020-02-04T00:22:11.18
IV.NRCA.HHE. ML:2.1 0.000720983 0.12 AML other m 2020-02-04T00:22:12.44
IV.NRCA.HNE. ML:2.1 0.0007196224499999999 0.13 AML other m 2020-02-04T00:22:12.44
IV.NRCA.HHN. ML:2.0 0.00053035645 0.16 AML other m 2020-02-04T00:22:12.38
IV.NRCA.HNN. ML:2.0 0.00048603039999999995 0.17 AML other m 2020-02-04T00:22:12.47
IV.GAVE.HNN. ML:1.7 0.0001937436 0.24 AML other m 2020-02-04T00:22:13.51
IV.GAVE.EHN. ML:2.2 0.0006451534000000001 0.14 AML other m 2020-02-04T00:22:13.63
IV.GAVE.HNE. ML:2.2 0.00076703955 0.14 AML other m 2020-02-04T00:22:13.65
IV.GAVE.EHE. ML:2.2 0.0006413581 0.14 AML other m 2020-02-04T00:22:13.65
IV.ARRO.EHN. ML:1.7 0.00015829055 0.14 AML other m 2020-02-04T00:22:16.96
IV.ARRO.EHE. ML:1.6 0.00013012425 0.2 AML other m 2020-02-04T00:22:16.95
IV.MF5.EHE. ML:2.0 0.0003502371 0.36 AML other m 2020-02-04T00:22:17.60
IV.MF5.EHN. ML:2.2 0.0005213215 0.3 AML other m 2020-02-04T00:22:17.49
IV.FDMO.HHN. ML:1.6 0.00010091315000000001 0.26 AML other m 2020-02-04T00:22:18.49
IV.FDMO.HHE. ML:1.5 0.00008701285 0.22 AML other m 2020-02-04T00:22:19.26
IV.GUMA.HHE. ML:2.4 0.0007086233500000001 0.36 AML other m 2020-02-04T00:22:19.11
IV.GUMA.HHN. ML:2.5 0.00081808985 0.32 AML other m 2020-02-04T00:22:19.16
IV.GUMA.HNE. ML:2.3 0.000563275 0.27 AML other m 2020-02-04T00:22:19.21
IV.GUMA.HNN. ML:2.5 0.0008103346 0.36 AML other m 2020-02-04T00:22:19.13
IV.CSP1.EHN. ML:1.8 0.00014882653 0.14 AML other m 2020-02-04T00:22:20.64
IV.CESI.HHN. ML:1.7 0.000113161205 0.22 AML other m 2020-02-04T00:22:21.70
IV.CESI.HNN. ML:1.9 0.000179060095 0.44 AML other m 2020-02-04T00:22:22.57
IV.OFFI.HHN. ML:2.1 0.0003625083 0.24 AML other m 2020-02-04T00:22:21.93
IV.OFFI.HHE. ML:2.3 0.0006354854000000001 0.22 AML other m 2020-02-04T00:22:20.51
IV.VCEL.EHN. ML:2.0 0.00022009980000000002 0.22 AML other m 2020-02-04T00:22:20.93
IV.VCEL.EHE. ML:1.9 0.00021464285 0.4 AML other m 2020-02-04T00:22:21.50
IV.CESX.HHN. ML:1.7 0.00010306482999999999 0.16 AML other m 2020-02-04T00:22:22.18
IV.CESX.HHE. ML:1.5 0.000071573925 0.2 AML other m 2020-02-04T00:22:22.62
IV.MNTT.EHE. ML:2.1 0.00030120535000000004 0.24 AML other m 2020-02-04T00:22:26.10
IV.MNTT.EHN. ML:2.2 0.00032661850000000004 0.36 AML other m 2020-02-04T00:22:24.05
IV.MOMA.HHE. ML:1.9 0.0001385746 0.14 AML other m 2020-02-04T00:22:22.97
IV.MOMA.HNN. ML:1.9 0.00015551075 0.32 AML other m 2020-02-04T00:22:24.60
IV.MOMA.HNE. ML:1.9 0.0001403839 0.18 AML other m 2020-02-04T00:22:23.34
IV.MOMA.HHN. ML:1.8 0.00013210855 0.24 AML other m 2020-02-04T00:22:21.95
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