Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 26-05-2019 and time 20:19:36 (Italy) in region 7 km NW Accumoli (RI)

A magnitude ML 1.3 earthquake occured in region: 7 km NW Accumoli (RI), on

  • 26-05-2019 18:19:36 (UTC)
  • 26-05-2019 20:19:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7460, 13.1890 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 7 667 667
Norcia PG 9 4957 5624
Arquata del Tronto AP 9 1178 6802
Cittareale RI 14 482 7284
Cascia PG 15 3217 10501
Amatrice RI 15 2657 13158
Montegallo AP 16 523 13681
Castelsantangelo sul Nera MC 17 281 13962
Acquasanta Terme AP 18 2916 16878
Preci PG 19 724 17602

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 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)
77 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)
91 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
Reviewed
Rev100 		ML 1.3 2019-05-26
18:19:36		 42.7463 13.1893 9 2019-05-26
18:38:13		 Sala Sismica INGV-Roma 68926401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-05-26 18:19:36 ± 0.07
Latitude 42.7463 ± 0.0036
Longitude 13.1893 ± 0.0061
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 68926401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 468
Semi-minor axis of confidence ellipse (meter) 291
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 85
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34534
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 68926401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-05-26 18:38:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.HHZ. 2019-05-26T18:20:15.89 3.0 undecidable manual S 0.28 0
IV.LRP.EHZ. 2019-05-26T18:20:13.92 3.0 undecidable manual S -0.41 0
IV.LRP.EHZ. 2019-05-26T18:19:59.97 3.0 undecidable manual P 2.24 0
IV.CSP1.EHZ. 2019-05-26T18:19:50.02 0.3 undecidable manual S 2 38.3283 50 0.31 68
IV.MF5.EHZ. 2019-05-26T18:19:49.52 0.3 undecidable manual S 39 34.6431 50 0.79 58
IV.CESI.HHZ. 2019-05-26T18:19:49.20 0.6 undecidable manual S 321 36.8298 50 -0.12 47
IV.FDMO.HHZ. 2019-05-26T18:19:48.52 0.6 undecidable manual S 346 33.2445 50 0.17 47
IV.TERO.HHZ. 2019-05-26T18:19:48.53 0.6 undecidable manual S 112 36.5412 50 -0.69 40
IV.RM33.EHZ. 2019-05-26T18:19:46.25 0.6 undecidable manual S 176 26.4513 109 -0.11 48
IV.CSP1.EHZ. 2019-05-26T18:19:44.12 0.1 undecidable manual P 2 38.3283 50 -0.07 95
IV.LNSS.HHZ. 2019-05-26T18:19:44.66 0.3 undecidable manual S 217 20.0688 115 0.35 70
IV.ARRO.EHZ. 2019-05-26T18:19:44.24 3.0 undecidable manual P -0.03 0
IV.MMO1.EHZ. 2019-05-26T18:19:44.39 0.3 undecidable manual S 33 20.3685 115 -0.01 75
IV.FDMO.HHZ. 2019-05-26T18:19:43.16 0.1 undecidable manual P 346 33.2445 50 -0.25 93
IV.TERO.HHZ. 2019-05-26T18:19:43.57 0.1 undecidable manual P 112 36.5412 50 -0.34 90
IV.MTRA.EHZ. 2019-05-26T18:19:43.24 0.3 undecidable manual S 86 16.9719 119 -0.1 74
IV.MF5.EHZ. 2019-05-26T18:19:43.78 0.1 undecidable manual P 39 34.6431 50 0.16 94
IV.SMA1.EHZ. 2019-05-26T18:19:43.92 0.3 undecidable manual S 137 17.5713 118 0.39 69
IV.CESI.HHZ. 2019-05-26T18:19:43.85 0.1 undecidable manual P 321 36.8298 50 -0.11 95
IV.RM33.EHZ. 2019-05-26T18:19:42.06 0.1 undecidable manual P 176 26.4513 109 -0.19 95
IV.NRCA.HHZ. 2019-05-26T18:19:41.46 0.3 undecidable manual S 328 11.4774 129 -0.3 71
IV.LNSS.HHZ. 2019-05-26T18:19:41.20 0.1 undecidable manual P 217 20.0688 115 0.14 97
IV.SMA1.EHZ. 2019-05-26T18:19:40.72 0.1 undecidable manual P 137 17.5713 118 0.1 98
IV.MMO1.EHZ. 2019-05-26T18:19:40.99 0.1 undecidable manual P 33 20.3685 115 -0.13 97
IV.MTRA.EHZ. 2019-05-26T18:19:40.54 0.1 positive manual P 86 16.9719 119 0.03 100
IV.NRCA.HHZ. 2019-05-26T18:19:39.66 0.1 undecidable manual P 328 11.4774 129 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.6 0.000465 0.12 AML other m 2019-05-26T18:19:41.80
IV.NRCA.HHN. ML:1.5 0.00038250000000000003 0.1 AML other m 2019-05-26T18:19:42.34
IV.MTRA.HNN. ML:1.7 0.0004095 0.74 AML other m 2019-05-26T18:19:43.74
IV.MTRA.EHE. ML:1.6 0.00039650000000000004 0.32 AML other m 2019-05-26T18:19:43.65
IV.MTRA.EHN. ML:1.6 0.000365 0.24 AML other m 2019-05-26T18:19:43.65
IV.MTRA.HNE. ML:1.6 0.0003725 0.58 AML other m 2019-05-26T18:19:43.64
IV.LNSS.HHN. ML:1.4 0.00017749999999999998 1.52 AML other m 2019-05-26T18:19:44.76
IV.LNSS.HHE. ML:1.3 0.0001455 0.14 AML other m 2019-05-26T18:19:45.27
IV.SMA1.EHN. ML:1.0 0.00009285000000000001 0.24 AML other m 2019-05-26T18:19:45.50
IV.SMA1.EHE. ML:1.1 0.0001052 0.54 AML other m 2019-05-26T18:19:46.57
IV.RM33.EHN. ML:1.1 0.000074 1.04 AML other m 2019-05-26T18:19:46.97
IV.RM33.EHE. ML:1.1 0.00006850000000000001 0.42 AML other m 2019-05-26T18:19:47.76
IV.ARRO.EHN. ML:1.0 0.000035999999999999994 0.22 AML other m 2019-05-26T18:19:51.24
IV.ARRO.EHE. ML:1.1 0.000047350000000000006 1.12 AML other m 2019-05-26T18:19:51.32
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