Earthquake with magnitude of ML 1.8 on date 16-07-2019 and time 14:18:55 (UTC) in region 7 km W Accumoli (RI)

A magnitude ML 1.8 earthquake occured in region: 7 km W Accumoli (RI), on

  • 16-07-2019 14:18:55 (UTC)
  • 16-07-2019 16:18:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7, 13.17 at 10 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.

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
Cittareale RI 10 482 1149
Norcia PG 12 4957 6106
Cascia PG 13 3217 9323
Amatrice RI 13 2657 11980
Arquata del Tronto AP 13 1178 13158
Monteleone di Spoleto PG 18 599 13757
Poggiodomo PG 19 117 13874

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km NW of L'Aquila (69753 inhabitants)
44 Km W of Teramo (54892 inhabitants)
45 Km E of Terni (111501 inhabitants)
47 Km SE of Foligno (57155 inhabitants)
78 Km SE of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
88 Km NE of Tivoli (56533 inhabitants)
90 Km W of Pescara (121014 inhabitants)
91 Km W of Chieti (51815 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.8 2019-07-16
14:18:55
42.7 13.17 11 2019-07-16
14:24:35
Sala Sismica INGV-Roma 70631491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-16 14:18:55 ± 0.07
Latitude 42.70 ± 0.00
Longitude 13.17 ± 0.01
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 70631491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 394
Semi-minor axis of confidence ellipse (meter) 353
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37951
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 70631491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-16 14:24:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APEC.HHZ. 2019-07-16T14:19:26.39 3.0 undecidable manual S -0.58 0
IV.RMP.HHZ. 2019-07-16T14:19:25.42 3.0 undecidable manual S 0.27 0
IV.EL6.EHZ. 2019-07-16T14:19:17.67 3.0 undecidable manual S 0.23 0
IV.VIVA.HHZ. 2019-07-16T14:19:11.28 3.0 negative manual P -0.8 0
IV.CESX.HHZ. 2019-07-16T14:19:10.95 3.0 undecidable manual S -0.14 0
IV.GUMA.HHZ. 2019-07-16T14:19:09.75 0.1 undecidable manual S 19 0.3795 50 0.92 79
IV.FDMO.HHZ. 2019-07-16T14:19:07.50 0.1 undecidable manual S 350 0.3372 50 -0.08 92
IV.MNTT.EHZ. 2019-07-16T14:19:05.31 3.0 negative manual P 0.81 0
IV.ASSB.HHZ. 2019-07-16T14:19:05.01 3.0 positive manual P 0.09 0
IV.MOMA.HHZ. 2019-07-16T14:19:04.23 3.0 undecidable manual P 0.33 0
IV.MMO1.EHZ. 2019-07-16T14:19:04.16 0.1 undecidable manual S 31 0.2284 50 -0.2 91
IV.CAMP.HHZ. 2019-07-16T14:19:04.73 0.1 undecidable manual S 133 0.2455 50 -0.13 92
IV.GUMA.HHZ. 2019-07-16T14:19:03.12 0.1 undecidable manual P 19 0.3795 50 0.13 96
IV.RM33.EHZ. 2019-07-16T14:19:03.25 0.3 undecidable manual S 169 0.1979 50 -0.2 71
IV.FIAM.HHZ. 2019-07-16T14:19:03.89 3.0 negative manual P 0.4 0
IV.GAVE.EHZ. 2019-07-16T14:19:03.43 0.3 undecidable manual S 267 0.1996 50 -0.07 75
IV.MC2.EHZ. 2019-07-16T14:19:03.75 0.3 undecidable manual S 5 0.2077 50 -0.01 73
IV.MTRA.EHZ. 2019-07-16T14:19:02.41 0.3 undecidable manual S 73 0.1781 118 -0.35 68
IV.ARRO.EHZ. 2019-07-16T14:19:02.04 3.0 negative manual Pg 0.42 0
IV.MF5.EHZ. 2019-07-16T14:19:02.81 0.6 positive manual P 37 0.3561 50 0.21 48
IV.SMA1.EHZ. 2019-07-16T14:19:02.22 0.3 undecidable manual S 120 0.1448 123 0.55 68
IV.GIGS.HHZ. 2019-07-16T14:19:02.63 3.0 undecidable manual P -0.16 0
IV.FDMO.HHZ. 2019-07-16T14:19:01.99 0.1 undecidable manual P 350 0.3372 50 -0.28 89
IV.NRCA.HHZ. 2019-07-16T14:19:01.25 0.3 undecidable manual S 344 0.1349 125 -0.11 74
IV.LNSS.HHZ. 2019-07-16T14:19:01.62 0.3 undecidable manual S 222 0.1367 125 0.21 71
IV.MMO1.EHZ. 2019-07-16T14:19:00.25 0.1 positive manual P 31 0.2284 50 -0.16 93
IV.CAMP.HHZ. 2019-07-16T14:19:00.46 0.1 undecidable manual P 133 0.2455 50 -0.24 91
IV.GAVE.EHZ. 2019-07-16T14:18:59.90 0.1 undecidable manual P 267 0.1996 50 -0.01 100
IV.SMA1.EHZ. 2019-07-16T14:18:59.05 0.1 negative manual P 120 0.1448 123 0.19 98
IV.MC2.EHZ. 2019-07-16T14:18:59.99 0.1 undecidable manual P 5 0.2077 50 -0.07 96
IV.MTRA.EHZ. 2019-07-16T14:18:59.37 0.1 undecidable manual P 73 0.1781 118 -0.12 96
IV.RM33.EHZ. 2019-07-16T14:18:59.80 0.1 undecidable manual P 169 0.1979 50 -0.08 97
IV.LNSS.HHZ. 2019-07-16T14:18:58.91 0.1 positive manual P 222 0.1367 125 0.21 96
IV.NRCA.HHZ. 2019-07-16T14:18:58.74 0.1 negative manual P 344 0.1349 125 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.3 0.00178 0.56 AML other m 2019-07-16T14:19:01.42
IV.NRCA.HHN. ML:2 0.0008945 0.78 AML other m 2019-07-16T14:19:01.54
IV.LNSS.HHE. ML:1.9 0.000782 1.84 AML other m 2019-07-16T14:19:02.96
IV.LNSS.HHN. ML:2 0.0009065 1.7 AML other m 2019-07-16T14:19:02.09
IV.SMA1.EHN. ML:1.5 0.0003095 0.36 AML other m 2019-07-16T14:19:02.39
IV.SMA1.EHE. ML:1.8 0.0005505 0.34 AML other m 2019-07-16T14:19:02.51
IV.MTRA.EHN. ML:2 0.0007985 0.32 AML other m 2019-07-16T14:19:02.54
IV.MTRA.EHE. ML:2.1 0.0009165 0.42 AML other m 2019-07-16T14:19:03.20
IV.RM33.EHE. ML:1.9 0.000496 0.88 AML other m 2019-07-16T14:19:03.46
IV.RM33.HNE. ML:1.8 0.0004425 0.86 AML other m 2019-07-16T14:19:03.46
IV.GAVE.HNN. ML:1.8 0.0004205 0.22 AML other m 2019-07-16T14:19:03.66
IV.GAVE.EHN. ML:2.3 0.001395 0.16 AML other m 2019-07-16T14:19:03.70
IV.GAVE.EHE. ML:2.1 0.000921 0.2 AML other m 2019-07-16T14:19:04.11
IV.GAVE.HNE. ML:2.1 0.0008955 0.2 AML other m 2019-07-16T14:19:04.11
IV.RM33.HNN. ML:1.8 0.000476 0.22 AML other m 2019-07-16T14:19:04.45
IV.RM33.EHN. ML:1.8 0.00045 0.24 AML other m 2019-07-16T14:19:04.46
IV.CAMP.HHE. ML:1 5.435E-5 1.4 AML other m 2019-07-16T14:19:05.81
IV.CAMP.HHN. ML:1 5.45E-5 1.16 AML other m 2019-07-16T14:19:06.73
IV.ARRO.EHN. ML:1.5 0.000128 0.96 AML other m 2019-07-16T14:19:07.20
IV.ARRO.EHE. ML:1.5 0.00011895 0.22 AML other m 2019-07-16T14:19:07.74
IV.FDMO.HHN. ML:1.5 0.0001215 0.08 AML other m 2019-07-16T14:19:08.80
IV.GUMA.HHE. ML:2.3 0.000626 0.22 AML other m 2019-07-16T14:19:09.88
IV.GUMA.HHN. ML:2 0.0003145 1.3 AML other m 2019-07-16T14:19:09.96
IV.FDMO.HHE. ML:1.6 0.0001405 0.94 AML other m 2019-07-16T14:19:09.52
IV.FIAM.HHE. ML:1.2 4.295E-5 1.2 AML other m 2019-07-16T14:19:11.17
IV.FIAM.HHN. ML:1.1 3.47E-5 0.82 AML other m 2019-07-16T14:19:11.81
IV.CESX.HHE. ML:1.5 8.1E-5 0.78 AML other m 2019-07-16T14:19:11.54
IV.MOMA.HHN. ML:1.7 0.000135 0.66 AML other m 2019-07-16T14:19:11.37
IV.CESX.HHN. ML:1.5 8.245E-5 1.44 AML other m 2019-07-16T14:19:11.83
IV.MOMA.HHE. ML:1.8 0.000161 0.94 AML other m 2019-07-16T14:19:11.38
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download