Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 29-07-2019 and time 17:29:26 (UTC) in region 7 km NW Accumoli (RI)

A magnitude ML 0.5 earthquake occured in region: 7 km NW Accumoli (RI), on

  • 29-07-2019 17:29:26 (UTC)
  • 29-07-2019 19:29:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7290, 13.1720 at 11 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 10 4957 5624
Arquata del Tronto AP 11 1178 6802
Cittareale RI 12 482 7284
Cascia PG 13 3217 10501
Amatrice RI 15 2657 13158
Montegallo AP 18 523 13681
Castelsantangelo sul Nera MC 19 281 13962
Poggiodomo PG 19 117 14079
Monteleone di Spoleto PG 20 599 14678
Preci PG 20 724 15402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Teramo (54892 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
46 Km NW of L'Aquila (69753 inhabitants)
47 Km E of Terni (111501 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km W of Pescara (121014 inhabitants)
90 Km NE of Tivoli (56533 inhabitants)
92 Km W of Chieti (51815 inhabitants)
94 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 0.5 2019-07-29
17:29:26		 42.7293 13.1718 11 2019-07-29
17:44:05		 Sala Sismica INGV-Roma 70997151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-29 17:29:26 ± 0.04
Latitude 42.7293 ± 0.0027
Longitude 13.1718 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70997151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 288
Semi-minor axis of confidence ellipse (meter) 237
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 123
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48923
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 70997151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-29 17:44:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.KLV.HHZ. 2019-07-29T17:31:08.32 3.0 positive manual Pn -8.32 0
IV.ZONE.HHZ. 2019-07-29T17:30:59.35 3.0 undecidable manual Sn 2.42 0
IV.SARZ.HHZ. 2019-07-29T17:30:55.23 3.0 undecidable manual Sn -0.72 0
CH.DIX.HHZ. 2019-07-29T17:30:50.54 3.0 negative manual Pg 16.25 0
IV.NDIM.HNZ. 2019-07-29T17:30:47.93 3.0 undecidable manual Sg 15.8 0
OX.MPRI.HHZ. 2019-07-29T17:30:46.79 3.0 undecidable manual Sn -6.5 0
IV.IMI.HHZ. 2019-07-29T17:30:23.15 3.0 negative manual Pg 7.1 0
IV.EUCT.HNZ. 2019-07-29T17:30:17.46 3.0 positive manual Pn 3.5 0
IV.ZONE.HHZ. 2019-07-29T17:30:15.83 3.0 undecidable manual Pn 2.46 0
IV.SPS2.HHZ. 2019-07-29T17:30:15.95 3.0 positive manual Pn -3.54 0
IV.MILN.HNZ. 2019-07-29T17:30:11.76 3.0 undecidable manual Pn -4.09 0
IX.STN3.HHZ.02 2019-07-29T17:30:10.72 3.0 undecidable manual Pg 8.75 0
IV.SBPO.HNZ. 2019-07-29T17:30:08.34 3.0 negative manual Pg 7.19 0
IV.NOCI.HHZ. 2019-07-29T17:30:07.00 3.0 positive manual Pn -3.89 0
IV.CSNT.HHZ. 2019-07-29T17:30:02.42 3.0 undecidable manual Sn -1.64 0
IV.RIBO.EHZ.01 2019-07-29T17:29:47.53 3.0 negative manual Pg 4.26 0
IV.FDMO.HHZ. 2019-07-29T17:29:37.97 0.6 undecidable manual S 349 34.743 50 0 49
IV.ASSB.HHZ. 2019-07-29T17:29:35.61 0.6 undecidable manual P 310 54.3012 50 -0.38 44
IV.RM33.EHZ. 2019-07-29T17:29:35.19 0.6 undecidable manual S 172 24.6531 50 -0.1 49
IV.MC2.EHE. 2019-07-29T17:29:34.55 0.6 undecidable manual S 4 20.2686 50 0.45 46
IV.MMO1.EHZ. 2019-07-29T17:29:34.72 0.3 undecidable manual S 34 22.6551 50 -0.03 75
IV.GAVE.EHZ. 2019-07-29T17:29:34.78 0.6 undecidable manual S 260 22.9548 50 -0.05 49
IV.MTRA.EHE. 2019-07-29T17:29:33.28 0.6 undecidable manual S 81 18.5703 120 -0.32 47
IV.LNSS.HHE. 2019-07-29T17:29:33.32 0.3 undecidable manual S 217 17.6712 121 -0.02 75
IV.SMA1.EHE. 2019-07-29T17:29:33.29 0.6 undecidable manual S 129 17.2716 122 0.07 50
IV.FDMO.HHZ. 2019-07-29T17:29:32.85 0.1 undecidable manual P 349 34.743 50 -0.13 95
IV.RM33.EHZ. 2019-07-29T17:29:31.40 0.1 undecidable manual P 172 24.6531 50 -0.04 99
IV.NRCA.HHE. 2019-07-29T17:29:31.66 0.6 undecidable manual S 338 12.4764 131 -0.21 49
IV.MMO1.EHZ. 2019-07-29T17:29:31.12 0.1 positive manual P 34 22.6551 50 0 100
IV.GAVE.EHZ. 2019-07-29T17:29:31.19 0.1 undecidable manual P 260 22.9548 50 0.02 100
IV.LNSS.HHE. 2019-07-29T17:29:30.40 0.1 undecidable manual P 217 17.6712 121 0.09 99
IV.SMA1.EHE. 2019-07-29T17:29:30.44 0.3 undecidable manual P 129 17.2716 122 0.2 73
IV.MC2.EHE. 2019-07-29T17:29:30.85 0.3 undecidable manual P 4 20.2686 50 0.11 74
IV.MTRA.EHE. 2019-07-29T17:29:30.43 0.3 undecidable manual P 81 18.5703 120 -0.03 75
IV.NRCA.HHE. 2019-07-29T17:29:29.60 0.1 undecidable manual P 338 12.4764 131 0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:0.5 0.0000197036935 0.1792 AML other m 2019-07-29T17:29:36.19
IV.GAVE.EHN. ML:0.4 0.000016076064300000003 0.1152 AML other m 2019-07-29T17:29:34.90
IV.GAVE.HNE. ML:1.4 0.00013781820000000001 0.832 AML other m 2019-07-29T17:29:34.04
IV.GAVE.HNN. ML:1.4 0.0001409017 0.9216 AML other m 2019-07-29T17:29:40.13
IV.RM33.EHE. ML:0.2 0.00001214674 0.1664 AML other m 2019-07-29T17:29:36.60
IV.RM33.EHN. ML:0.4 0.000016497252 0.1664 AML other m 2019-07-29T17:29:35.39
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