Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 03-02-2020 and time 19:41:27 (Italy) in region 3 km SW Amatrice (RI)

A magnitude ML 1.6 earthquake occured in region: 3 km SW Amatrice (RI), on

  • 03-02-2020 18:41:27 (UTC)
  • 03-02-2020 19:41:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6130, 13.2600 at 12 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 3 2657 2657
Cittareale RI 8 482 3139
Accumoli RI 9 667 3806
Montereale AQ 10 2581 6387
Capitignano AQ 11 665 7052
Campotosto AQ 11 542 7594
Borbona RI 15 617 8211
Posta RI 17 694 8905
Cagnano Amiterno AQ 17 1369 10274
Barete AQ 18 737 11011
Arquata del Tronto AP 18 1178 12189
Crognaleto TE 19 1297 13486
Pizzoli AQ 20 4326 17812

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
59 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
80 Km W of Chieti (51815 inhabitants)
80 Km W of Pescara (121014 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
97 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 1.6 2020-02-03
18:41:27		 42.6132 13.2603 12 2020-07-18
21:08:29		 Bollettino Sismico Italiano INGV 77658191
Reviewed
Rev100 		ML 1.6 2020-02-03
18:41:27		 42.6188 13.264 13 2020-02-03
18:48:25		 Sala Sismica INGV-Roma 76171611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-03 18:41:27 ± 0.07
Latitude 42.6132 ± 0.0036
Longitude 13.2603 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77658191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 425
Semi-minor axis of confidence ellipse (meter) 179
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.54139
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 77658191
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-24 19:06:55

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 76171611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-03 18:48:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2020-02-03T18:41:46.50 0.6 undecidable manual S 291 60.0954 91 0.37 42
IV.FDMO.HHZ. 2020-02-03T18:41:43.70 0.6 undecidable manual S 343 49.0176 91 0.53 42
IV.MF5.EHZ. 2020-02-03T18:41:43.13 0.6 undecidable manual S 21 44.622 91 1.14 32
IV.FIAM.HHZ. 2020-02-03T18:41:40.90 0.6 undecidable manual S 197 40.0266 91 0.13 46
IV.MC2.EHZ. 2020-02-03T18:41:39.60 0.6 undecidable manual S 350 33.6441 92 0.55 43
IV.GIGS.HHZ. 2020-02-03T18:41:38.20 0.3 undecidable manual S 125 31.1466 92 -0.18 70
IV.GAVE.EHZ. 2020-02-03T18:41:38.00 0.3 undecidable manual S 286 31.1466 92 -0.4 67
IV.MOMA.HHZ. 2020-02-03T18:41:38.27 0.3 undecidable manual P 291 60.0954 91 -0.04 68
IV.MMO1.EHZ. 2020-02-03T18:41:38.50 0.3 undecidable manual S 10 32.2455 92 -0.18 69
IV.CESX.HHZ. 2020-02-03T18:41:37.47 0.3 undecidable manual P 270 55.0005 91 -0.05 69
IV.GUMA.HNN. 2020-02-03T18:41:37.73 1.0 undecidable manual P 7 50.2164 91 0.94 18
IV.TERO.HHZ. 2020-02-03T18:41:37.10 0.3 undecidable manual S 88 28.0497 92 -0.48 65
IV.VCEL.EHZ. 2020-02-03T18:41:37.94 0.3 undecidable manual P 117 53.3022 91 0.68 58
IV.MF5.EHZ. 2020-02-03T18:41:36.32 0.3 undecidable manual P 21 44.622 91 0.4 65
IV.NRCA.HHZ. 2020-02-03T18:41:36.80 0.3 undecidable manual S 334 27.1506 92 -0.55 64
IV.FAGN.HHZ. 2020-02-03T18:41:36.99 1.0 undecidable manual P 145 46.7199 91 0.74 19
IV.FDMO.HHZ. 2020-02-03T18:41:36.50 0.3 undecidable manual P 343 49.0176 91 -0.1 68
IV.FEMA.HNE. 2020-02-03T18:41:36.37 0.6 undecidable manual P 336 42.3243 91 0.8 38
IV.FIAM.HHZ. 2020-02-03T18:41:35.33 0.3 undecidable manual P 197 40.0266 91 0.11 69
IV.MC2.EHZ. 2020-02-03T18:41:34.24 0.6 undecidable manual P 350 33.6441 92 0.02 48
IV.LNSS.HHZ. 2020-02-03T18:41:34.70 0.1 undecidable manual S 266 17.9709 97 -0.19 95
IV.MTRA.EHZ. 2020-02-03T18:41:34.80 0.1 undecidable manual S 35 19.4694 96 -0.48 88
MN.AQU.HNN. 2020-02-03T18:41:33.85 0.6 undecidable manual P 158 31.0467 92 0.02 48
IV.GIGS.HHZ. 2020-02-03T18:41:33.70 0.3 undecidable manual P 125 31.1466 92 -0.14 70
IV.NRCA.HHZ. 2020-02-03T18:41:33.10 0.1 undecidable manual P 334 27.1506 92 -0.14 94
IV.GAVE.EHZ. 2020-02-03T18:41:33.63 0.1 undecidable manual P 286 31.1466 92 -0.21 92
IV.MMO1.EHZ. 2020-02-03T18:41:33.87 0.1 undecidable manual P 10 32.2455 92 -0.14 93
IV.TERO.HHZ. 2020-02-03T18:41:33.21 0.3 undecidable manual P 88 28.0497 92 -0.16 70
IV.CAMP.HHZ. 2020-02-03T18:41:33.90 0.1 undecidable manual S 125 14.874 104 -0.17 96
IV.SMA1.EHZ. 2020-02-03T18:41:32.20 0.1 undecidable manual S 72 6.3936 142 0.01 100
IV.MTRA.EHZ. 2020-02-03T18:41:31.96 0.1 undecidable manual P 35 19.4694 96 -0.08 96
IV.LNSS.HHZ. 2020-02-03T18:41:31.80 0.1 undecidable manual P 266 17.9709 97 -0.03 98
IV.T1299.HNN. 2020-02-03T18:41:31.60 0.6 undecidable manual S 37 2.997 162 -0.15 49
IV.CAMP.HHZ. 2020-02-03T18:41:31.41 0.3 undecidable manual P 125 14.874 104 0.06 73
IV.SMA1.EHZ. 2020-02-03T18:41:30.56 0.1 undecidable manual P 72 6.3936 142 0.3 95
IV.T1299.HNN. 2020-02-03T18:41:30.16 0.1 undecidable manual P 37 2.997 162 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:2.6 0.0048200000000000005 0.26 AML other m 2020-02-03T18:41:32.57
IV.CAMP.HHN. ML:1.0 0.0001002 0.88 AML other m 2020-02-03T18:41:34.48
IV.CAMP.HHE. ML:1.1 0.0001242 0.62 AML other m 2020-02-03T18:41:34.40
IV.LNSS.HNN. ML:1.8 0.0004664946 0.3712 AML other m 2020-02-03T18:41:34.88
IV.LNSS.HHN. ML:1.8 0.0005204999999999999 1.64 AML other m 2020-02-03T18:41:34.89
IV.LNSS.HNE. ML:1.8 0.00054502515 0.1536 AML other m 2020-02-03T18:41:34.92
IV.LNSS.HHE. ML:1.8 0.0005769999999999999 1.86 AML other m 2020-02-03T18:41:34.00
IV.MTRA.HNE. ML:1.6 0.0002945 1.36 AML other m 2020-02-03T18:41:35.16
IV.MTRA.HNN. ML:1.8 0.00040300000000000004 1.28 AML other m 2020-02-03T18:41:35.87
IV.MTRA.EHN. ML:1.7 0.0003655 1.2 AML other m 2020-02-03T18:41:35.07
IV.MTRA.EHE. ML:1.6 0.0002775 0.58 AML other m 2020-02-03T18:41:36.48
IV.NRCA.HNE. ML:1.7 0.0002858138 0.9856 AML other m 2020-02-03T18:41:37.52
IV.NRCA.HHN. ML:1.7 0.00026749999999999994 0.14 AML other m 2020-02-03T18:41:37.09
IV.NRCA.HNN. ML:1.6 0.00023445335 0.1408 AML other m 2020-02-03T18:41:37.10
IV.NRCA.HHE. ML:1.7 0.0002505 0.14 AML other m 2020-02-03T18:41:37.10
IV.TERO.HHE. ML:1.5 0.000155 0.5 AML other m 2020-02-03T18:41:38.41
IV.GAVE.HNE. ML:1.6 0.00017077770000000002 0.1536 AML other m 2020-02-03T18:41:38.43
IV.GIGS.HHN. ML:1.2 0.00006555 0.14 AML other m 2020-02-03T18:41:38.44
IV.GAVE.EHN. ML:1.6 0.0001945 0.72 AML other m 2020-02-03T18:41:38.85
IV.GIGS.HHE. ML:0.8 0.000028049999999999997 1.04 AML other m 2020-02-03T18:41:39.06
IV.GAVE.EHE. ML:1.8 0.0002745 0.16 AML other m 2020-02-03T18:41:39.79
IV.TERO.HHN. ML:1.5 0.00017099999999999998 0.6 AML other m 2020-02-03T18:41:40.51
IV.FIAM.HHE. ML:0.8 0.000021949999999999998 0.66 AML other m 2020-02-03T18:41:41.34
IV.FIAM.HHN. ML:0.8 0.000019386165000000002 0.9216 AML other m 2020-02-03T18:41:41.82
IV.MF5.EHN. ML:1.6 0.000111800485 0.3456 AML other m 2020-02-03T18:41:43.42
IV.MF5.EHE. ML:1.6 0.000126692475 0.3456 AML other m 2020-02-03T18:41:43.73
IV.FDMO.HHN. ML:0.9 0.000021511065 1.5744 AML other m 2020-02-03T18:41:44.62
IV.FDMO.HHE. ML:0.9 0.00001772961 0.7296 AML other m 2020-02-03T18:41:43.85
IV.VCEL.EHN. ML:1.7 0.00011885000000000002 0.9 AML other m 2020-02-03T18:41:46.57
IV.MOMA.HHE. ML:1.5 0.00006355 0.18 AML other m 2020-02-03T18:41:47.22
IV.MOMA.HHN. ML:1.5 0.0000629 0.22 AML other m 2020-02-03T18:41:47.26
IV.VCEL.EHE. ML:1.6 0.00009365 0.42 AML other m 2020-02-03T18:41:49.76
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