Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 06-04-2019 and time 09:46:42 (Italy) in region 8 km NW Accumoli (RI)

A magnitude ML 1.6 earthquake occured in region: 8 km NW Accumoli (RI), on

  • 06-04-2019 07:46:42 (UTC)
  • 06-04-2019 09:46:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7490, 13.1860 at 10 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
Accumoli RI 8 667 667
Norcia PG 9 4957 5624
Arquata del Tronto AP 10 1178 6802
Cascia PG 14 3217 10019
Cittareale RI 15 482 10501
Amatrice RI 16 2657 13158
Montegallo AP 16 523 13681
Castelsantangelo sul Nera MC 17 281 13962
Acquasanta Terme AP 19 2916 16878
Preci PG 19 724 17602

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Teramo (54892 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
47 Km NW of L'Aquila (69753 inhabitants)
49 Km E of Terni (111501 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
90 Km W of Pescara (121014 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km W of Chieti (51815 inhabitants)
93 Km NE of Tivoli (56533 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 1.6 2019-04-06
07:46:42		 42.7487 13.186 10 2019-08-22
08:25:06		 Bollettino Sismico Italiano INGV 69925711
Reviewed
Rev100 		ML 1.5 2019-04-06
07:46:42		 42.7517 13.182 10 2019-04-06
07:52:21		 Sala Sismica INGV-Roma 67293751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-06 07:46:42 ± 0.04
Latitude 42.7487 ± 0.0018
Longitude 13.1860 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 69925711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 265
Semi-minor axis of confidence ellipse (meter) 148
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) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 39
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 53
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.59175
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 67293751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-06 07:52:21

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 43
Type of magnitude ML
Reference to an origin 69925711
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-26 08:24:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.VNF1.HGZ. 2019-04-06T07:47:06.35 3.0 negative manual P -0.2 0
IV.TOLF.HHZ. 2019-04-06T07:47:03.15 3.0 undecidable manual P 0.76 0
IV.ATCC.EHZ. 2019-04-06T07:47:02.83 0.3 undecidable manual S 318 65.6898 50 0.33 64
IV.EL6.EHZ. 2019-04-06T07:47:02.74 0.6 undecidable manual S 354 64.7907 50 0.47 41
IV.SNTG.HHZ. 2019-04-06T07:47:01.42 0.3 undecidable manual S 341 59.5959 50 0.53 62
IV.ASSB.HHZ. 2019-04-06T07:46:59.35 0.3 undecidable manual S 307 53.8017 50 -0.01 70
IV.MOMA.HHZ. 2019-04-06T07:46:58.92 0.3 undecidable manual S 277 50.5161 50 0.45 64
IV.MML1.HNE. 2019-04-06T07:46:56.71 0.3 undecidable manual S 337 44.0226 50 -0.03 71
IV.PF6.EHN. 2019-04-06T07:46:56.73 0.3 undecidable manual S 1 43.2234 50 0.22 68
IV.SAP2.EHE. 2019-04-06T07:46:56.86 0.6 undecidable manual S 24 42.3243 50 0.58 42
IV.GIGS.HHZ. 2019-04-06T07:46:56.88 0.1 undecidable manual S 136 45.5211 50 -0.25 90
IV.CSP1.EHZ. 2019-04-06T07:46:55.35 0.3 undecidable manual S 2 38.1285 50 0.2 69
IV.CESI.HHZ. 2019-04-06T07:46:54.70 0.1 undecidable manual S 321 36.5412 50 -0.02 96
IV.TERO.HHZ. 2019-04-06T07:46:54.59 0.3 undecidable manual S 112 36.8298 50 -0.22 69
IV.FDMO.HHZ. 2019-04-06T07:46:53.72 0.3 undecidable manual S 346 32.9448 50 -0.05 72
IV.EL6.EHZ. 2019-04-06T07:46:53.90 0.3 undecidable manual P 354 64.7907 50 0.04 68
IV.ATCC.EHZ. 2019-04-06T07:46:53.69 0.6 undecidable manual P 318 65.6898 50 -0.31 43
IV.CAMP.HHZ. 2019-04-06T07:46:52.84 0.1 undecidable manual S 142 29.8479 50 -0.1 96
IV.SNTG.HHZ. 2019-04-06T07:46:52.96 0.3 undecidable manual P 341 59.5959 50 -0.1 68
IV.FIAM.HNN. 2019-04-06T07:46:52.13 0.6 undecidable manual P 186 53.6019 50 -0.01 47
IT.MTCL.HGZ. 2019-04-06T07:46:52.92 0.3 undecidable manual S 331 31.1466 50 -0.38 67
IV.RM33.EHZ. 2019-04-06T07:46:52.07 0.3 undecidable manual S 175 26.6511 50 -0.03 73
IV.ASSB.HHZ. 2019-04-06T07:46:52.08 0.3 undecidable manual P 307 53.8017 50 -0.1 69
IV.GAVE.EHZ. 2019-04-06T07:46:51.36 0.1 undecidable manual S 255 24.5532 50 -0.19 95
IV.MOMA.HHZ. 2019-04-06T07:46:51.91 0.3 undecidable manual P 277 50.5161 50 0.24 67
IV.OFFI.HHE. 2019-04-06T07:46:51.52 1.0 undecidable manual P 63 45.621 50 0.61 20
IV.FEMA.HNE. 2019-04-06T07:46:51.64 0.3 undecidable manual S 335 26.1516 50 -0.32 69
IV.MMO1.EHZ. 2019-04-06T07:46:50.18 0.1 undecidable manual S 34 20.2686 117 -0.1 97
IV.LNSS.HHZ. 2019-04-06T07:46:50.27 0.1 undecidable manual S 216 20.0688 117 0.05 98
IV.GIGS.HHZ. 2019-04-06T07:46:50.61 0.1 undecidable manual P 136 45.5211 50 -0.28 89
IV.MML1.HNE. 2019-04-06T07:46:50.45 0.1 undecidable manual P 337 44.0226 50 -0.22 91
IV.PF6.EHN. 2019-04-06T07:46:50.40 0.1 undecidable manual P 1 43.2234 50 -0.14 93
IV.SAP2.EHE. 2019-04-06T07:46:50.91 0.6 undecidable manual P 24 42.3243 50 0.51 43
IV.T1299.HNN. 2019-04-06T07:46:49.09 0.1 undecidable manual S 148 14.874 125 0.4 92
IV.CSP1.EHZ. 2019-04-06T07:46:49.78 0.3 undecidable manual P 2 38.1285 50 0.03 72
IV.TERO.HHZ. 2019-04-06T07:46:49.41 0.1 undecidable manual P 112 36.8298 50 -0.14 94
IV.MC2.EHZ. 2019-04-06T07:46:49.68 0.1 undecidable manual S 1 18.0708 120 0.07 98
IV.MF5.EHZ. 2019-04-06T07:46:49.60 0.3 undecidable manual P 40 34.6431 50 0.38 67
IV.MTRA.HNZ. 2019-04-06T07:46:49.18 0.1 undecidable manual S 87 17.1717 121 -0.17 96
IV.SMA1.EHZ. 2019-04-06T07:46:49.60 0.1 undecidable manual S 137 17.871 120 0.04 99
IV.CESI.HHZ. 2019-04-06T07:46:49.41 0.1 negative manual P 321 36.5412 50 -0.09 95
IV.FEMA.HNE. 2019-04-06T07:46:48.14 0.1 undecidable manual P 335 26.1516 50 0.23 94
IT.MTCL.HGZ. 2019-04-06T07:46:48.47 0.1 undecidable manual P 331 31.1466 50 -0.21 93
IV.RM33.EHZ. 2019-04-06T07:46:48.01 0.3 undecidable manual P 175 26.6511 50 0.02 73
IV.CAMP.HHZ. 2019-04-06T07:46:48.39 0.1 undecidable manual P 142 29.8479 50 -0.08 96
IV.FDMO.HHZ. 2019-04-06T07:46:48.79 0.3 undecidable manual P 346 32.9448 50 -0.17 70
IV.NRCA.HNZ. 2019-04-06T07:46:47.28 0.1 undecidable manual S 328 11.0778 133 -0.38 93
IV.GAVE.EHZ. 2019-04-06T07:46:47.62 0.1 positive manual P 255 24.5532 50 -0.05 97
IV.SMA1.EHZ. 2019-04-06T07:46:46.63 0.1 negative manual P 137 17.871 120 0.11 97
IV.MC2.EHZ. 2019-04-06T07:46:46.22 0.3 undecidable manual P 1 18.0708 120 -0.33 70
IV.T1299.HNN. 2019-04-06T07:46:46.40 0.1 negative manual P 148 14.874 125 0.38 92
IV.MMO1.EHZ. 2019-04-06T07:46:46.92 0.1 positive manual P 34 20.2686 117 -0.02 99
IV.LNSS.HHZ. 2019-04-06T07:46:46.97 0.1 positive manual P 216 20.0688 117 0.06 98
IV.MTRA.HNZ. 2019-04-06T07:46:46.40 0.1 positive manual P 87 17.1717 121 0 100
IV.NRCA.HNZ. 2019-04-06T07:46:45.46 0.1 positive manual P 328 11.0778 133 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.5 0.004030008999999999 0.064 AML other m 2019-04-06T07:46:47.35
IV.NRCA.HNN. ML:2.5 0.0037442295 0.1088 AML other m 2019-04-06T07:46:47.35
IV.NRCA.HHN. ML:2.6 0.00433251 0.1024 AML other m 2019-04-06T07:46:47.35
IV.NRCA.HHE. ML:2.5 0.0040407025 0.0576 AML other m 2019-04-06T07:46:47.35
IV.MTRA.EHE. ML:1.8 0.00059555715 0.1216 AML other m 2019-04-06T07:46:49.80
IV.MTRA.EHN. ML:2.0 0.0008294047 0.16 AML other m 2019-04-06T07:46:49.72
IV.MTRA.HNE. ML:1.8 0.00062305215 0.1024 AML other m 2019-04-06T07:46:49.79
IV.MTRA.HNN. ML:2.0 0.0008319002 0.1664 AML other m 2019-04-06T07:46:49.72
IV.SMA1.EHE. ML:1.6 0.0002906877 0.3776 AML other m 2019-04-06T07:46:53.08
IV.SMA1.EHN. ML:1.4 0.00020168795 0.1792 AML other m 2019-04-06T07:46:51.32
IV.LNSS.HNE. ML:1.8 0.00046256125000000004 0.128 AML other m 2019-04-06T07:46:50.57
IV.LNSS.HHE. ML:1.8 0.00047366855000000003 0.1216 AML other m 2019-04-06T07:46:50.56
IV.LNSS.HNN. ML:1.7 0.00034958295000000003 0.192 AML other m 2019-04-06T07:46:50.85
IV.LNSS.HHN. ML:1.8 0.00040420639999999997 0.16 AML other m 2019-04-06T07:46:50.94
IV.GAVE.HNE. ML:1.9 0.00046690949999999995 0.192 AML other m 2019-04-06T07:46:52.89
IV.GAVE.EHN. ML:1.7 0.00029943825 0.1152 AML other m 2019-04-06T07:46:52.04
IV.GAVE.EHE. ML:1.9 0.0004421697 0.1792 AML other m 2019-04-06T07:46:52.90
IV.RM33.EHN. ML:1.4 0.00012357435 0.1408 AML other m 2019-04-06T07:46:53.06
IV.RM33.EHE. ML:1.3 0.00011586655 0.1408 AML other m 2019-04-06T07:46:52.79
IV.CAMP.HHE. ML:1.4 0.00011809075 0.256 AML other m 2019-04-06T07:46:52.93
IV.CAMP.HHN. ML:1.3 0.00009669699499999999 0.2176 AML other m 2019-04-06T07:46:53.04
IV.FDMO.HHN. ML:1.4 0.00010166487500000001 0.1984 AML other m 2019-04-06T07:46:54.28
IV.FDMO.HHE. ML:1.3 0.00008042834 0.3008 AML other m 2019-04-06T07:46:56.20
IV.TERO.HNN. ML:1.2 0.000063750954 0.1344 AML other m 2019-04-06T07:46:55.17
IV.CESI.HHE. ML:1.5 0.0001100893 0.1792 AML other m 2019-04-06T07:46:54.72
IV.TERO.HNE. ML:1.6 0.000150044675 0.7744 AML other m 2019-04-06T07:46:53.34
IV.TERO.HHE. ML:1.4 0.00009874208 0.0768 AML other m 2019-04-06T07:46:55.88
IV.CESI.HHN. ML:1.8 0.00025469845 0.3584 AML other m 2019-04-06T07:46:54.92
IV.TERO.HHN. ML:1.5 0.000121202055 0.096 AML other m 2019-04-06T07:46:56.44
IV.MF5.EHN. ML:1.2 0.00006265542999999999 0.2368 AML other m 2019-04-06T07:46:55.75
IV.GIGS.HHN. ML:0.7 0.000017390615499999998 0.0768 AML other m 2019-04-06T07:46:58.52
IV.GIGS.HHE. ML:0.9 0.000023446485 0.1792 AML other m 2019-04-06T07:46:56.97
IV.MOMA.HNE. ML:1.8 0.00015497962 0.3712 AML other m 2019-04-06T07:47:00.44
IV.MOMA.HHE. ML:1.7 0.0001204933 0.16 AML other m 2019-04-06T07:46:59.68
IV.MOMA.HHN. ML:1.4 0.00007233288 0.2048 AML other m 2019-04-06T07:47:00.68
IV.MOMA.HNN. ML:1.8 0.00015257245 0.8256 AML other m 2019-04-06T07:47:03.65
IV.ASSB.HHN. ML:1.3 0.00004623485 0.16 AML other m 2019-04-06T07:47:01.47
IV.ASSB.HHE. ML:1.2 0.000038895615 0.16 AML other m 2019-04-06T07:47:01.08
IV.SNTG.HHE. ML:1.0 0.000018042654999999996 0.1152 AML other m 2019-04-06T07:47:02.56
IV.SNTG.HHN. ML:1.0 0.000022385580000000003 0.224 AML other m 2019-04-06T07:47:02.95
IV.ATCC.EHN. ML:1.2 0.000032363685 0.2432 AML other m 2019-04-06T07:47:04.14
IV.EL6.EHN. ML:1.3 0.000038056754999999995 0.1408 AML other m 2019-04-06T07:47:06.88
IV.EL6.EHE. ML:1.3 0.000037173525 0.1792 AML other m 2019-04-06T07:47:04.47
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