Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 22-03-2020 and time 16:54:01 (Italy) in region 4 km W Amatrice (RI)

A magnitude ML 1.7 earthquake occured in region: 4 km W Amatrice (RI), on

  • 22-03-2020 15:54:01 (UTC)
  • 22-03-2020 16:54:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6400, 13.2410 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
Amatrice RI 4 2657 2657
Accumoli RI 6 667 3324
Cittareale RI 7 482 3806
Montereale AQ 13 2581 6387
Campotosto AQ 14 542 6929
Capitignano AQ 14 665 7594
Arquata del Tronto AP 16 1178 8772
Borbona RI 17 617 9389
Posta RI 17 694 10083
Cagnano Amiterno AQ 20 1369 11452

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
49 Km E of Terni (111501 inhabitants)
56 Km SE of Foligno (57155 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
83 Km W of Chieti (51815 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
96 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 1.7 2020-03-22
15:54:01		 42.6397 13.2408 9 2020-07-18
21:08:30		 Bollettino Sismico Italiano INGV 77785101
Reviewed
Rev100 		ML 1.8 2020-03-22
15:54:01		 42.6347 13.2272 10 2020-03-22
16:03:09		 Sala Sismica INGV-Roma 77469771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-22 15:54:01 ± 0.08
Latitude 42.6397 ± 0.0045
Longitude 13.2408 ± 0.0073
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77785101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 602
Semi-minor axis of confidence ellipse (meter) 381
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 1.59360
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 36
Type of magnitude ML
Reference to an origin 77469771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-22 16:03:09

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 49
Type of magnitude ML
Reference to an origin 77785101
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-02 10:30:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HNZ. 2020-03-22T15:54:31.75 3.0 undecidable manual P 176.8896 1.61 0
IV.EL6.EHZ. 2020-03-22T15:54:25.96 0.6 undecidable manual S 352 77.367 50 1.25 29
IV.SNTG.HHZ. 2020-03-22T15:54:24.24 0.6 undecidable manual S 340 72.4719 50 0.82 36
IV.T0110.HHZ. 2020-03-22T15:54:21.90 0.6 undecidable manual S 136 63.1923 50 0.96 34
IV.POFI.HHZ. 2020-03-22T15:54:21.26 3.0 undecidable manual P 109.4127 1.53 0
IV.VCEL.EHZ. 2020-03-22T15:54:20.13 0.6 undecidable manual S 119 56.0994 50 1.09 33
IV.CESX.HHE. 2020-03-22T15:54:19.38 0.6 undecidable manual S 267 53.502 50 1.02 34
IV.GUMA.HHZ. 2020-03-22T15:54:17.52 0.6 undecidable manual S 9 47.5191 50 0.75 38
IV.VVLD.HHZ. 2020-03-22T15:54:17.87 0.6 undecidable manual P 160 91.0422 50 0.97 32
IV.CESI.HHZ. 2020-03-22T15:54:17.42 0.6 undecidable manual S 326 48.9177 50 0.3 44
IV.FDMO.HHZ. 2020-03-22T15:54:16.34 0.6 undecidable manual S 344 45.7209 50 0.05 47
IV.MF5.EHZ. 2020-03-22T15:54:16.07 0.6 undecidable manual S 25 42.5241 50 0.65 41
IV.FIAM.HHZ. 2020-03-22T15:54:14.75 0.6 undecidable manual S 194 42.4242 50 -0.65 40
IT.MMP1.HGE. 2020-03-22T15:54:14.79 1.0 undecidable manual P 223 59.1963 50 2.79 3
IV.EL6.EHZ. 2020-03-22T15:54:14.56 0.6 undecidable manual P 352 77.367 50 -0.24 43
IV.SNTG.HHZ. 2020-03-22T15:54:13.69 1.0 undecidable manual P 340 72.4719 50 -0.36 21
IV.T0110.HHZ. 2020-03-22T15:54:12.38 0.6 undecidable manual P 136 63.1923 50 -0.23 44
IV.MC2.EHZ. 2020-03-22T15:54:12.41 0.3 undecidable manual S 352 30.4473 50 0.21 70
IV.CESX.HHE. 2020-03-22T15:54:12.28 0.6 undecidable manual P 267 53.502 50 1.16 32
IV.GIGS.HHZ. 2020-03-22T15:54:12.42 0.3 undecidable manual S 127 34.1436 50 -0.76 59
IV.TERO.HHZ. 2020-03-22T15:54:11.37 0.6 undecidable manual S 93 29.6481 50 -0.62 42
IV.MMO1.EHZ. 2020-03-22T15:54:11.69 0.3 undecidable manual S 14 29.6481 50 -0.29 69
IV.VCEL.EHZ. 2020-03-22T15:54:11.66 1.0 undecidable manual P 119 56.0994 50 0.14 23
IV.CESI.HHZ. 2020-03-22T15:54:10.00 1.0 undecidable manual P 326 48.9177 50 -0.41 22
IV.OFFI.HHE. 2020-03-22T15:54:10.77 1.0 undecidable manual P 48 48.8178 50 0.37 22
IV.GUMA.HHZ. 2020-03-22T15:54:10.23 0.1 positive manual P 9 47.5191 50 0.03 94
IV.FAGN.HHZ. 2020-03-22T15:54:10.08 1.0 undecidable manual P 146 50.1165 50 -0.52 21
IV.CSP1.EHE. 2020-03-22T15:54:10.19 0.1 positive manual P 357 50.2164 50 -0.43 86
IT.MTCL.HGZ. 2020-03-22T15:54:09.13 1.0 undecidable manual P 334 43.9227 50 -0.52 21
IV.MF5.EHZ. 2020-03-22T15:54:09.47 0.3 undecidable manual P 25 42.5241 50 0.04 71
IV.FDMO.HHZ. 2020-03-22T15:54:09.39 0.1 undecidable manual P 344 45.7209 50 -0.54 84
IV.NRCA.HNZ. 2020-03-22T15:54:09.55 0.6 undecidable manual S 334 23.8539 111 -0.59 43
IV.FEMA.HNE. 2020-03-22T15:54:08.76 0.6 undecidable manual P 337 39.0276 50 -0.13 47
IV.CAMP.HHZ. 2020-03-22T15:54:08.17 0.6 undecidable manual S 130 17.9709 118 -0.09 49
IV.FIAM.HHZ. 2020-03-22T15:54:08.88 0.6 undecidable manual P 194 42.4242 50 -0.54 42
IV.MTRA.EHZ. 2020-03-22T15:54:08.09 0.3 undecidable manual S 44 18.1707 117 -0.24 71
IV.MC2.EHZ. 2020-03-22T15:54:07.20 0.6 undecidable manual P 352 30.4473 50 -0.37 45
IV.LNSS.HHZ. 2020-03-22T15:54:07.82 0.6 undecidable manual S 256 16.872 119 -0.12 49
IV.GIGS.HHZ. 2020-03-22T15:54:07.53 1.0 undecidable manual P 127 34.1436 50 -0.6 21
IV.TERO.HHZ. 2020-03-22T15:54:07.10 1.0 undecidable manual P 93 29.6481 50 -0.35 23
MN.AQU.HNN. 2020-03-22T15:54:07.33 1.0 undecidable manual P 157 34.4433 50 -0.85 19
IV.MMO1.EHZ. 2020-03-22T15:54:07.07 0.6 undecidable manual P 14 29.6481 50 -0.37 45
IV.RM33.HNZ. 2020-03-22T15:54:07.32 0.6 undecidable manual S 188 14.6742 123 0.04 50
IV.NRCA.HNZ. 2020-03-22T15:54:06.01 0.1 positive manual P 334 23.8539 111 -0.37 91
IV.SMA1.EHZ. 2020-03-22T15:54:06.01 0.6 undecidable manual S 97 7.7811 140 0.54 45
IV.MTRA.EHZ. 2020-03-22T15:54:05.27 0.6 undecidable manual P 44 18.1707 117 -0.07 49
IV.LNSS.HHZ. 2020-03-22T15:54:05.05 0.1 positive manual P 256 16.872 119 -0.06 99
IV.CAMP.HHZ. 2020-03-22T15:54:05.25 0.1 positive manual P 130 17.9709 118 -0.05 99
IV.SMA1.EHZ. 2020-03-22T15:54:04.11 0.1 undecidable manual P 97 7.7811 140 0.43 93
IV.RM33.HNZ. 2020-03-22T15:54:04.74 0.1 positive manual P 188 14.6742 123 0.01 100
IV.T1299.HNN. 2020-03-22T15:54:04.97 0.6 undecidable manual S 100 3.3966 160 0.26 48
IV.T1299.HNN. 2020-03-22T15:54:03.57 0.1 negative manual P 100 3.3966 160 0.32 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:0.0 0.002921268 0.1664 AML other m 2020-03-22T15:54:06.50
IV.SMA1.EHN. ML:0.0 0.0060142095 0.256 AML other m 2020-03-22T15:54:06.39
IV.RM33.HNE. ML:1.8 0.0006777047 0.1152 AML other m 2020-03-22T15:54:07.55
IV.RM33.EHE. ML:1.8 0.0006844838 0.128 AML other m 2020-03-22T15:54:07.55
IV.RM33.EHN. ML:1.6 0.00040305384999999997 0.1152 AML other m 2020-03-22T15:54:07.55
IV.RM33.HNN. ML:1.7 0.0004505114 0.1024 AML other m 2020-03-22T15:54:07.55
IV.LNSS.HNE. ML:1.7 0.0003984893 0.1792 AML other m 2020-03-22T15:54:07.95
IV.LNSS.HNN. ML:1.5 0.0002965021 0.448 AML other m 2020-03-22T15:54:08.11
IV.LNSS.HHE. ML:1.7 0.0004126383 0.1664 AML other m 2020-03-22T15:54:07.94
IV.LNSS.HHN. ML:1.6 0.00034154865 0.1792 AML other m 2020-03-22T15:54:08.99
IV.CAMP.HHE. ML:1.4 0.000190044455 0.3456 AML other m 2020-03-22T15:54:08.39
IV.CAMP.HHN. ML:1.3 0.00017151149999999999 0.4352 AML other m 2020-03-22T15:54:08.95
IV.MTRA.EHN. ML:2.1 0.0010530605 0.2176 AML other m 2020-03-22T15:54:08.63
IV.MTRA.HNN. ML:2.1 0.00104907135 0.2304 AML other m 2020-03-22T15:54:08.63
IV.MTRA.EHE. ML:2.2 0.001304823 0.0768 AML other m 2020-03-22T15:54:08.16
IV.MTRA.HNE. ML:2.2 0.0012872266999999998 0.0896 AML other m 2020-03-22T15:54:08.16
IV.NRCA.HNN. ML:2.3 0.0013673685 0.1536 AML other m 2020-03-22T15:54:09.75
IV.NRCA.HHE. ML:2.7 0.003183682 0.1664 AML other m 2020-03-22T15:54:09.77
IV.NRCA.HNE. ML:2.7 0.0030504085 0.1536 AML other m 2020-03-22T15:54:09.76
IV.NRCA.HHN. ML:2.4 0.0017164539999999999 0.1536 AML other m 2020-03-22T15:54:09.75
IV.TERO.HHN. ML:1.6 0.00017627580000000002 0.064 AML other m 2020-03-22T15:54:12.12
IV.TERO.HHE. ML:1.4 0.00012146041 0.0384 AML other m 2020-03-22T15:54:12.10
IV.TERO.HNN. ML:1.5 0.00015485931 0.0768 AML other m 2020-03-22T15:54:12.08
IV.TERO.HNE. ML:1.4 0.000116044325 0.1408 AML other m 2020-03-22T15:54:11.53
IV.GIGS.HHE. ML:1.0 0.00004296085 0.1408 AML other m 2020-03-22T15:54:12.50
IV.GIGS.HHN. ML:1.0 0.000041764025 0.1792 AML other m 2020-03-22T15:54:12.65
IV.FIAM.HHN. ML:1.4 0.000079095185 0.1792 AML other m 2020-03-22T15:54:15.24
IV.FIAM.HHE. ML:1.3 0.000059765430000000004 0.1664 AML other m 2020-03-22T15:54:14.92
IV.FIAM.HNN. ML:1.6 0.00014625697 0.1664 AML other m 2020-03-22T15:54:15.24
IV.FDMO.HHN. ML:1.5 0.00010219067500000001 0.3712 AML other m 2020-03-22T15:54:16.61
IV.FDMO.HHE. ML:1.5 0.00008633668999999999 0.1408 AML other m 2020-03-22T15:54:17.92
IV.MF5.EHN. ML:1.7 0.00017689385 0.7424 AML other m 2020-03-22T15:54:16.65
IV.MF5.EHE. ML:1.9 0.00023143375 0.4992 AML other m 2020-03-22T15:54:16.77
IV.CESI.HNN. ML:1.7 0.000130046495 0.3456 AML other m 2020-03-22T15:54:18.43
IV.CESI.HHE. ML:1.5 0.00007835837 0.128 AML other m 2020-03-22T15:54:18.72
IV.CESI.HHN. ML:1.6 0.00010790410000000001 0.2048 AML other m 2020-03-22T15:54:17.73
IV.GUMA.HNN. ML:2.1 0.00035046714500000005 0.4992 AML other m 2020-03-22T15:54:19.99
IV.GUMA.HHN. ML:2.1 0.00036404275 0.2688 AML other m 2020-03-22T15:54:17.73
IV.GUMA.HNE. ML:2.1 0.00031990475 0.4224 AML other m 2020-03-22T15:54:18.27
IV.GUMA.HHE. ML:2.2 0.00041350774999999995 0.2816 AML other m 2020-03-22T15:54:18.28
IV.VCEL.EHE. ML:1.5 0.000064574115 0.2688 AML other m 2020-03-22T15:54:20.66
IV.VCEL.EHN. ML:1.6 0.00009579040999999999 0.1792 AML other m 2020-03-22T15:54:21.60
IV.T0110.HHN. ML:1.5 0.000065607 0.3072 AML other m 2020-03-22T15:54:22.79
IV.T0110.HHE. ML:1.6 0.000074762225 0.4224 AML other m 2020-03-22T15:54:24.35
IV.SNTG.HHN. ML:1.3 0.000031781065 0.2816 AML other m 2020-03-22T15:54:27.19
IV.SNTG.HHE. ML:1.3 0.0000310434675 0.4608 AML other m 2020-03-22T15:54:25.00
IV.SNTG.HNE. ML:2.0 0.00013804946 0.576 AML other m 2020-03-22T15:54:28.22
IV.EL6.EHN. ML:1.6 0.00006512039549999999 0.8192 AML other m 2020-03-22T15:54:26.41
IV.EL6.EHE. ML:1.6 0.00006451771500000001 0.8576 AML other m 2020-03-22T15:54:27.65
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