Earthquake with magnitude of ML 1.9 on date 21-07-2019 and time 20:21:52 (UTC) in region 7 km W Accumoli (RI)

A magnitude ML 1.9 earthquake occured in region: 7 km W Accumoli (RI), on

  • 21-07-2019 20:21:52 (UTC)
  • 21-07-2019 22:21:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.72, 13.18 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.

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 14 2657 13158
Montegallo AP 18 523 13681
Castelsantangelo sul Nera MC 19 281 13962
Poggiodomo PG 20 117 14079
Acquasanta Terme AP 20 2916 16995

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Teramo (54892 inhabitants)
45 Km NW of L'Aquila (69753 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
47 Km E of Terni (111501 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
83 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)
91 Km W of Chieti (51815 inhabitants)
94 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 1.9 2019-07-21
20:21:52
42.73 13.18 9 2019-07-21
20:27:32
Sala Sismica INGV-Roma 70779171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-21 20:21:52 ± 0.06
Latitude 42.73 ± 0.00
Longitude 13.18 ± 0.00
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 70779171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 355
Semi-minor axis of confidence ellipse (meter) 352
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 128
Circular confidence region, given by single value of horizontal uncertainty (meter) 350
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 50
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.55668
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 19
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 62
Type of magnitude ML
Reference to an origin 70779171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-21 20:27:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2019-07-21T20:22:24.90 3.0 undecidable manual S -0.15 0
IV.ARVD.HHZ. 2019-07-21T20:22:20.07 3.0 undecidable manual S -0.24 0
IV.EL6.EHZ. 2019-07-21T20:22:14.10 3.0 undecidable manual S -0.13 0
IV.SNTG.HHZ. 2019-07-21T20:22:12.01 0.3 undecidable manual S 342 0.5567 50 0.34 66
IV.ASSB.HHZ. 2019-07-21T20:22:09.84 0.6 undecidable manual S 310 0.4937 50 0.03 47
IV.CESX.HHZ. 2019-07-21T20:22:08.52 0.6 undecidable manual S 255 0.4488 50 0.06 47
IV.MGAB.HHZ. 2019-07-21T20:22:08.49 3.0 positive manual P 0.36 0
IV.SAP2.EHZ. 2019-07-21T20:22:08.14 0.3 undecidable manual S 24 0.4056 50 0.95 54
IV.SSFR.HNZ. 2019-07-21T20:22:08.86 3.0 undecidable manual P 1.37 0
IV.ARVD.HHZ. 2019-07-21T20:22:07.62 3.0 positive manual P -0.33 0
IV.GUMA.HHZ. 2019-07-21T20:22:06.43 0.6 undecidable manual S 19 0.357 50 0.68 41
IV.T0110.HHZ. 2019-07-21T20:22:05.16 3.0 negative manual P -0.42 0
IV.MF5.EHZ. 2019-07-21T20:22:05.70 0.3 undecidable manual S 38 0.3345 50 0.61 63
IV.ARRO.EHZ. 2019-07-21T20:22:05.02 0.3 undecidable manual S 244 0.3354 50 -0.08 72
IV.CESI.HHZ. 2019-07-21T20:22:04.90 0.3 undecidable manual S 325 0.3426 50 -0.44 67
IV.FOSV.EHZ. 2019-07-21T20:22:04.80 3.0 negative manual P -0.43 0
IV.EL6.EHZ. 2019-07-21T20:22:04.10 3.0 negative manual P -0.43 0
IV.VCEL.EHZ. 2019-07-21T20:22:04.24 3.0 undecidable manual P 0 0
IV.SNTG.HHZ. 2019-07-21T20:22:03.25 1.0 undecidable manual P 342 0.5567 50 -0.17 23
IV.FDMO.HHZ. 2019-07-21T20:22:03.91 0.3 undecidable manual S 348 0.3175 50 -0.68 62
IV.ASSB.HHZ. 2019-07-21T20:22:02.08 0.1 positive manual P 310 0.4937 50 -0.27 90
IV.MNTT.EHZ. 2019-07-21T20:22:02.16 3.0 undecidable manual P 0.38 0
IV.GAVE.EHZ. 2019-07-21T20:22:01.18 0.6 undecidable manual S 261 0.2095 110 0.42 46
IV.CAMP.HHZ. 2019-07-21T20:22:01.92 0.6 undecidable manual S 138 0.2554 107 -0.51 45
IV.CESX.HHZ. 2019-07-21T20:22:01.38 0.6 positive manual P 255 0.4488 50 -0.19 46
IV.MOMA.HHZ. 2019-07-21T20:22:01.54 0.1 positive manual P 280 0.4515 50 -0.08 94
IV.RM33.EHZ. 2019-07-21T20:22:01.08 0.6 undecidable manual S 173 0.2176 109 0.02 50
IV.FIAM.HHZ. 2019-07-21T20:22:01.35 3.0 negative manual P -0.36 0
IV.SAP2.EHZ. 2019-07-21T20:22:01.12 0.6 undecidable manual P 24 0.4056 50 0.28 46
IV.GUMA.HHZ. 2019-07-21T20:22:00.09 0.3 undecidable manual P 19 0.357 50 0.09 72
IV.GIGS.HHZ. 2019-07-21T20:22:00.18 3.0 undecidable manual P -0.49 0
IV.MC2.EHZ. 2019-07-21T20:22:00.34 0.6 undecidable manual S 3 0.1862 112 0.42 46
IV.MMO1.EHZ. 2019-07-21T20:22:00.27 0.6 undecidable manual S 32 0.2059 110 -0.36 47
IV.LNSS.HHZ. 2019-07-21T20:21:59.41 0.6 undecidable manual S 219 0.1583 116 0.49 46
IV.ARRO.EHZ. 2019-07-21T20:21:59.47 0.1 positive manual P 244 0.3354 50 -0.16 95
IV.CESI.HHZ. 2019-07-21T20:21:59.47 0.1 undecidable manual P 325 0.3426 50 -0.3 92
IV.MF5.EHZ. 2019-07-21T20:21:59.64 0.3 positive manual P 38 0.3345 50 0.02 73
IV.FDMO.HHZ. 2019-07-21T20:21:58.89 0.3 positive manual P 348 0.3175 50 -0.44 67
IV.SMA1.EHZ. 2019-07-21T20:21:58.72 0.6 undecidable manual S 129 0.1502 117 0.05 50
IV.MTRA.EHZ. 2019-07-21T20:21:58.91 0.6 undecidable manual S 79 0.1646 115 -0.26 48
IV.RM33.EHZ. 2019-07-21T20:21:57.26 0.1 positive manual P 173 0.2176 109 -0.04 100
IV.NRCA.HNZ. 2019-07-21T20:21:57.32 0.3 undecidable manual S 337 0.1169 123 -0.24 73
IV.GAVE.EHZ. 2019-07-21T20:21:57.29 0.1 positive manual P 261 0.2095 110 0.17 97
IV.CAMP.HHZ. 2019-07-21T20:21:57.82 0.6 undecidable manual P 138 0.2554 107 -0.27 47
IV.SMA1.EHZ. 2019-07-21T20:21:56.03 0.1 positive manual P 129 0.1502 117 0.12 99
IV.MMO1.EHZ. 2019-07-21T20:21:56.83 0.1 positive manual P 32 0.2059 110 -0.22 96
IV.MTRA.EHZ. 2019-07-21T20:21:56.05 0.1 undecidable manual P 79 0.1646 115 -0.16 98
IV.LNSS.HHZ. 2019-07-21T20:21:56.42 0.1 positive manual P 219 0.1583 116 0.36 94
IV.MC2.EHZ. 2019-07-21T20:21:56.72 0.1 positive manual P 3 0.1862 112 0.08 99
IV.NRCA.HNZ. 2019-07-21T20:21:55.39 0.1 positive manual P 337 0.1169 123 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.4 0.00277 0.74 AML other m 2019-07-21T20:21:57.05
IV.NRCA.HHN. ML:2.2 0.001915 0.1 AML other m 2019-07-21T20:21:57.58
IV.NRCA.HHE. ML:2.4 0.003045 0.1 AML other m 2019-07-21T20:21:58.06
IV.NRCA.HNN. ML:2.2 0.00193 0.9 AML other m 2019-07-21T20:21:58.58
IV.LNSS.HHE. ML:2.3 0.001605 0.46 AML other m 2019-07-21T20:21:59.56
IV.MTRA.HNE. ML:2.4 0.002135 0.32 AML other m 2019-07-21T20:21:59.71
IV.MTRA.EHE. ML:2.4 0.00213 0.32 AML other m 2019-07-21T20:21:59.71
IV.MTRA.EHN. ML:2.1 0.001093 0.24 AML other m 2019-07-21T20:21:59.72
IV.MTRA.HNN. ML:2.1 0.001105 0.24 AML other m 2019-07-21T20:21:59.72
IV.LNSS.HHN. ML:2.4 0.00223 0.54 AML other m 2019-07-21T20:21:59.86
IV.RM33.EHN. ML:1.9 0.000518 0.28 AML other m 2019-07-21T20:22:01.27
IV.GAVE.HNE. ML:2 0.000742 0.36 AML other m 2019-07-21T20:22:01.46
IV.GAVE.EHE. ML:2.1 0.0007525 0.34 AML other m 2019-07-21T20:22:01.47
IV.RM33.EHE. ML:1.9 0.000463 0.14 AML other m 2019-07-21T20:22:01.74
IV.SMA1.EHN. ML:2.3 0.00189 0.4 AML other m 2019-07-21T20:22:02.08
IV.CAMP.HHE. ML:1.7 0.0002625 0.56 AML other m 2019-07-21T20:22:02.37
IV.SMA1.EHE. ML:2.2 0.00155 0.58 AML other m 2019-07-21T20:22:02.58
IV.CAMP.HHN. ML:1.7 0.00029 0.54 AML other m 2019-07-21T20:22:02.39
IV.GAVE.HNN. ML:1.6 0.00027 0.4 AML other m 2019-07-21T20:22:04.43
IV.GAVE.EHN. ML:2 0.0007055 0.28 AML other m 2019-07-21T20:22:04.09
IV.CESI.HHN. ML:2.1 0.0004625 0.38 AML other m 2019-07-21T20:22:05.31
IV.CESI.HHE. ML:1.9 0.000286 0.38 AML other m 2019-07-21T20:22:05.38
IV.MF5.EHN. ML:1.9 0.0003085 0.44 AML other m 2019-07-21T20:22:05.96
IV.FDMO.HHE. ML:1.7 0.0001975 1.54 AML other m 2019-07-21T20:22:06.89
IV.FDMO.HHN. ML:1.8 0.0002385 0.18 AML other m 2019-07-21T20:22:06.24
IV.GUMA.HHE. ML:2.4 0.0009785 0.38 AML other m 2019-07-21T20:22:06.71
IV.ARRO.EHN. ML:1.6 0.0001605 0.84 AML other m 2019-07-21T20:22:06.93
IV.GIGS.HHE. ML:1.5 8.945E-5 1.92 AML other m 2019-07-21T20:22:07.00
IV.ARRO.EHE. ML:1.6 0.0001485 0.2 AML other m 2019-07-21T20:22:07.16
IV.GUMA.HHN. ML:2.3 0.0007705 0.58 AML other m 2019-07-21T20:22:07.61
IV.GIGS.HHN. ML:1.5 9.995E-5 0.34 AML other m 2019-07-21T20:22:07.36
IV.SAP2.EHN. ML:2.7 0.001545 0.66 AML other m 2019-07-21T20:22:08.53
IV.MF5.EHE. ML:2 0.0003865 0.42 AML other m 2019-07-21T20:22:09.27
IV.FIAM.HHE. ML:1.3 5.34E-5 0.26 AML other m 2019-07-21T20:22:09.45
IV.ASSB.HHE. ML:2 0.0002325 0.5 AML other m 2019-07-21T20:22:10.36
IV.SAP2.EHE. ML:1.9 0.000243 0.7 AML other m 2019-07-21T20:22:10.90
IV.MOMA.HHE. ML:1.8 0.000165 0.98 AML other m 2019-07-21T20:22:10.41
IV.ASSB.HHN. ML:1.9 0.000186 0.68 AML other m 2019-07-21T20:22:10.97
IV.MOMA.HNE. ML:1.9 0.0002045 0.54 AML other m 2019-07-21T20:22:11.02
IV.MOMA.HHN. ML:1.9 0.0001885 1.16 AML other m 2019-07-21T20:22:11.12
IV.MOMA.HNN. ML:1.9 0.000217 0.6 AML other m 2019-07-21T20:22:12.29
IV.SNTG.HHE. ML:1.4 5.4E-5 1.12 AML other m 2019-07-21T20:22:13.17
IV.CESX.HHN. ML:1.5 9.11E-5 0.46 AML other m 2019-07-21T20:22:13.18
IV.SNTG.HHN. ML:1.5 6.14E-5 0.18 AML other m 2019-07-21T20:22:13.80
IV.FIAM.HHN. ML:1.2 4.33E-5 0.98 AML other m 2019-07-21T20:22:13.96
IV.FOSV.EHE. ML:1.7 7.51E-5 0.14 AML other m 2019-07-21T20:22:15.17
IV.VCEL.EHE. ML:2 0.0001955 1.74 AML other m 2019-07-21T20:22:16.02
IV.MNTT.EHE. ML:2 0.000286 0.76 AML other m 2019-07-21T20:22:16.18
IV.VCEL.EHN. ML:2.1 0.000223 0.8 AML other m 2019-07-21T20:22:16.79
IV.EL6.EHN. ML:1.8 0.00010005 0.42 AML other m 2019-07-21T20:22:16.71
IV.T0110.HHE. ML:2.1 0.000186 0.5 AML other m 2019-07-21T20:22:16.65
IV.T0110.HHN. ML:2 0.000168 0.4 AML other m 2019-07-21T20:22:16.85
IV.CESX.HHE. ML:1.5 8.795E-5 1.42 AML other m 2019-07-21T20:22:17.15
IV.EL6.EHE. ML:1.9 0.0001432 0.8 AML other m 2019-07-21T20:22:17.45
IV.FOSV.EHN. ML:1.5 5.51E-5 0.42 AML other m 2019-07-21T20:22:18.21
IV.MNTT.EHN. ML:2.2 0.000363 0.36 AML other m 2019-07-21T20:22:19.68
IV.ARVD.HHE. ML:1.4 2.8E-5 1.28 AML other m 2019-07-21T20:22:22.24
IV.MGAB.HHN. ML:1.8 8.12E-5 0.4 AML other m 2019-07-21T20:22:25.24
IV.MGAB.HHE. ML:1.8 7.01E-5 1.28 AML other m 2019-07-21T20:22:25.09
IV.ARVD.HHN. ML:1.4 2.895E-5 0.6 AML other m 2019-07-21T20:22:28.30
IV.PIEI.HHN. ML:1.3 1.845E-5 0.62 AML other m 2019-07-21T20:22:30.03
IV.PIEI.HHE. ML:1.5 3.015E-5 0.26 AML other m 2019-07-21T20:22:30.35
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