Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 19-04-2019 and time 11:45:12 (Italy) in region 3 km SE Accumoli (RI)

A magnitude ML 1.3 earthquake occured in region: 3 km SE Accumoli (RI), on

  • 19-04-2019 09:45:12 (UTC)
  • 19-04-2019 11:45:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6740, 13.2740 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
Accumoli RI 3 667 667
Amatrice RI 5 2657 3324
Cittareale RI 11 482 3806
Arquata del Tronto AP 11 1178 4984
Campotosto AQ 15 542 5526
Acquasanta Terme AP 16 2916 8442
Montereale AQ 17 2581 11023
Capitignano AQ 17 665 11688
Montegallo AP 20 523 12211
Valle Castellana TE 20 977 13188
Norcia PG 20 4957 18145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Teramo (54892 inhabitants)
37 Km N of L'Aquila (69753 inhabitants)
53 Km E of Terni (111501 inhabitants)
56 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
81 Km W of Pescara (121014 inhabitants)
82 Km W of Chieti (51815 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
87 Km NE of Guidonia Montecelio (88673 inhabitants)
88 Km NE of Tivoli (56533 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 1.3 2019-04-19
09:45:12		 42.6738 13.2735 12 2019-08-22
08:25:15		 Bollettino Sismico Italiano INGV 71277931
Reviewed
Rev100 		ML 1.3 2019-04-19
09:45:12		 42.6753 13.2752 12 2019-04-19
09:53:27		 Sala Sismica INGV-Roma 67739411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-19 09:45:12 ± 0.05
Latitude 42.6738 ± 0.0027
Longitude 13.2735 ± 0.0037
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 71277931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 276
Semi-minor axis of confidence ellipse (meter) 153
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 55
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.04047
Epicentral distance of station farthest from the epicenter (degree) 0.31206
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 19
Type of magnitude ML
Reference to an origin 71277931
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-08 15:44:53

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 67739411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-19 09:53:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIGS.HHZ. 2019-04-19T09:45:23.71 0.3 undecidable manual S 135 34.6431 92 -0.04 74
IV.MC2.EHZ. 2019-04-19T09:45:22.13 0.3 undecidable manual S 345 27.2505 93 0.34 71
IV.GAVE.EHZ. 2019-04-19T09:45:22.63 0.3 undecidable manual S 274 30.9468 93 -0.16 73
IV.MMO1.EHZ. 2019-04-19T09:45:21.31 0.3 undecidable manual S 10 25.3524 94 0.02 76
IV.TERO.HHZ. 2019-04-19T09:45:21.66 0.3 undecidable manual S 102 27.5502 93 -0.21 73
IV.NRCA.HHZ. 2019-04-19T09:45:20.03 0.3 undecidable manual S 324 21.9669 95 -0.35 71
IV.LNSS.HHZ. 2019-04-19T09:45:19.91 0.3 undecidable manual S 248 20.5683 96 -0.11 75
IV.CAMP.HHZ. 2019-04-19T09:45:19.44 0.3 undecidable manual S 144 18.87 98 -0.13 75
IV.RM33.EHZ. 2019-04-19T09:45:19.49 0.3 undecidable manual S 195 18.9699 98 -0.09 76
IV.MTRA.EHZ. 2019-04-19T09:45:18.01 0.3 undecidable manual S 47 13.5753 110 -0.18 74
IV.GAVE.EHZ. 2019-04-19T09:45:18.40 0.3 undecidable manual P 274 30.9468 93 0.15 73
IV.GIGS.HHZ. 2019-04-19T09:45:18.74 0.3 undecidable manual P 135 34.6431 92 -0.07 74
IV.TERO.HHZ. 2019-04-19T09:45:17.71 0.3 undecidable manual P 102 27.5502 93 -0.01 75
IV.MMO1.EHZ. 2019-04-19T09:45:17.34 0.3 undecidable manual P 10 25.3524 94 -0.05 75
IV.MC2.EHZ. 2019-04-19T09:45:17.76 0.3 undecidable manual P 345 27.2505 93 0.09 74
IV.SMA1.EHZ. 2019-04-19T09:45:16.60 0.3 undecidable manual S 134 6.993 140 -0.15 75
IV.RM33.EHZ. 2019-04-19T09:45:16.50 0.3 undecidable manual P 195 18.9699 98 0.1 75
IV.LNSS.HHZ. 2019-04-19T09:45:16.68 0.3 undecidable manual P 248 20.5683 96 0.03 76
IV.T1299.HNZ. 2019-04-19T09:45:16.33 0.3 undecidable manual S 171 4.4955 153 -0.05 77
IV.CAMP.HHZ. 2019-04-19T09:45:16.48 0.1 undecidable manual P 144 18.87 98 0.09 100
IV.NRCA.HHZ. 2019-04-19T09:45:16.83 0.3 undecidable manual P 324 21.9669 95 -0.03 76
IV.SMA1.EHZ. 2019-04-19T09:45:15.00 0.3 undecidable manual P 134 6.993 140 0.23 75
IV.MTRA.EHZ. 2019-04-19T09:45:15.73 0.3 undecidable manual P 47 13.5753 110 0.13 75
IV.T1299.HNZ. 2019-04-19T09:45:14.82 0.1 undecidable manual P 171 4.4955 153 0.27 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.2 0.0001890627 0.1984 AML other m 2019-04-19T09:45:17.23
IV.MTRA.HNE. ML:1.4 0.00025853485 0.1792 AML other m 2019-04-19T09:45:18.17
IV.MTRA.HNN. ML:1.3 0.00018066292 0.1664 AML other m 2019-04-19T09:45:18.08
IV.MTRA.EHE. ML:1.4 0.00025537875 0.1792 AML other m 2019-04-19T09:45:18.50
IV.MTRA.EHN. ML:1.4 0.0002165 0.96 AML other m 2019-04-19T09:45:18.08
IV.CAMP.HHN. ML:0.7 0.000034949999999999996 0.2 AML other m 2019-04-19T09:45:19.68
IV.CAMP.HHE. ML:0.5 0.0000247 0.14 AML other m 2019-04-19T09:45:19.62
IV.RM33.EHE. ML:1.2 0.00011015446499999999 0.1216 AML other m 2019-04-19T09:45:19.92
IV.NRCA.HHE. ML:1.5 0.00020800000000000001 0.18 AML other m 2019-04-19T09:45:20.22
IV.RM33.EHN. ML:1.2 0.0001125 0.14 AML other m 2019-04-19T09:45:20.22
IV.RM33.HNN. ML:1.2 0.00013146871999999998 0.1472 AML other m 2019-04-19T09:45:20.15
IV.NRCA.HHN. ML:1.4 0.00017099999999999998 0.6 AML other m 2019-04-19T09:45:20.16
IV.LNSS.HHE. ML:1.3 0.00014700000000000002 0.12 AML other m 2019-04-19T09:45:20.82
IV.LNSS.HHN. ML:1.4 0.000162 1.32 AML other m 2019-04-19T09:45:20.21
IV.TERO.HHN. ML:1.4 0.0001185 0.16 AML other m 2019-04-19T09:45:21.79
IV.TERO.HHE. ML:1.2 0.00007785000000000001 0.18 AML other m 2019-04-19T09:45:21.79
IV.RM33.HNE. ML:1.3 0.0001463491 0.4672 AML other m 2019-04-19T09:45:22.24
IV.GAVE.EHN. ML:1.5 0.00014830845 1.7632 AML other m 2019-04-19T09:45:23.92
IV.GAVE.EHE. ML:1.2 0.000081335005 0.3008 AML other m 2019-04-19T09:45:24.34
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