Earthquake with magnitude of ML 1.1 on date 19-08-2019 and time 00:46:33 (UTC) in region 2 km NW Opi (AQ)

A magnitude ML 1.1 earthquake occured in region: 2 km NW Opi (AQ), on

  • 19-08-2019 00:46:33 (UTC)
  • 19-08-2019 02:46:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8, 13.82 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Opi AQ 2 420 420
Pescasseroli AQ 3 2203 2623
Villetta Barrea AQ 9 653 3276
San Donato Val di Comino FR 10 2107 5383
Civitella Alfedena AQ 11 296 5679
Scanno AQ 13 1847 7526
Campoli Appennino FR 13 1725 9251
Alvito FR 14 2713 11964
Settefrati FR 14 728 12692
Pescosolido FR 14 1555 14247
Bisegna AQ 15 223 14470
Barrea AQ 15 726 15196
Posta Fibreno FR 15 1139 16335
Gallinaro FR 15 1269 17604
Villalago AQ 16 568 18172
Vicalvi FR 16 783 18955
Picinisco FR 17 1218 20173
Villavallelonga AQ 18 919 21092
Fontechiari FR 18 1303 22395
Broccostella FR 18 2741 25136
Lecce nei Marsi AQ 19 1702 26838
Scontrone AQ 19 574 27412
Sora FR 19 26144 53556
Alfedena AQ 19 864 54420
Atina FR 20 4316 58736

Municipalities with at least 50000 inhabitants

An earthquake occurred to
68 Km SW of Chieti (51815 inhabitants)
71 Km SE of L'Aquila (69753 inhabitants)
81 Km SW of Pescara (121014 inhabitants)
84 Km E of Latina (125985 inhabitants)
85 Km SW of Montesilvano (53738 inhabitants)
87 Km E of Tivoli (56533 inhabitants)
87 Km E of Velletri (53303 inhabitants)
91 Km NW of Caserta (76326 inhabitants)
93 Km E of Guidonia Montecelio (88673 inhabitants)
97 Km S of Teramo (54892 inhabitants)
97 Km NW of Aversa (53047 inhabitants)
100 Km E of Aprilia (73446 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 1.1 2019-08-19
00:46:33
41.8 13.82 11 2019-08-19
01:07:02
Sala Sismica INGV-Roma 71613751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-19 00:46:33 ± 0.08
Latitude 41.80 ± 0.00
Longitude 13.82 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71613751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 590
Semi-minor axis of confidence ellipse (meter) 480
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 590
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36872
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 71613751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-19 01:07:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2019-08-19T00:46:46.94 0.6 undecidable manual S 47 0.3687 50 -0.04 49
IV.VAGA.HHZ. 2019-08-19T00:46:45.17 3.0 undecidable manual P 1.82 0
IV.RNI2.HHZ. 2019-08-19T00:46:44.15 0.3 undecidable manual S 110 0.2644 50 0.25 72
IV.GIUL.HHZ. 2019-08-19T00:46:43.33 3.0 negative manual P -0.21 0
IV.CERA.HHZ. 2019-08-19T00:46:43.67 0.6 undecidable manual S 143 0.2473 50 0.29 48
IV.INTR.HHZ. 2019-08-19T00:46:42.82 0.6 undecidable manual S 16 0.2248 50 0.11 50
IV.LRP.EHZ. 2019-08-19T00:46:42.84 0.6 undecidable manual S 230 0.2293 50 0 51
IV.T0110.HHZ. 2019-08-19T00:46:42.65 3.0 negative manual P 0.18 0
IV.VVLD.HHZ. 2019-08-19T00:46:40.92 0.3 undecidable manual S 297 0.1637 120 0.08 76
IV.LPEL.HHZ. 2019-08-19T00:46:40.95 0.1 undecidable manual P 47 0.3687 50 -0.34 92
IV.MIDA.HHZ. 2019-08-19T00:46:40.96 3.0 undecidable manual P 0.07 0
IV.POFI.HHZ. 2019-08-19T00:46:39.03 0.6 undecidable manual S 226 0.1124 131 -0.19 50
IV.RNI2.HHZ. 2019-08-19T00:46:39.97 1.0 negative manual P 110 0.2644 50 0.46 23
IV.CERA.HHZ. 2019-08-19T00:46:38.90 0.1 positive manual P 143 0.2473 50 -0.31 95
IV.INTR.HHZ. 2019-08-19T00:46:38.90 1.0 negative manual P 16 0.2248 50 0.08 25
IV.LRP.EHZ. 2019-08-19T00:46:38.81 0.6 positive manual P 230 0.2293 50 -0.09 50
IV.VVLD.HHZ. 2019-08-19T00:46:37.88 0.1 positive manual P 297 0.1637 120 0.14 100
IV.POFI.HHZ. 2019-08-19T00:46:36.89 0.3 positive manual P 226 0.1124 131 0.08 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RNI2.HHN. ML:0 5.7441885E-5 0.16 AML other m 2019-08-19T00:46:46.62
IV.RNI2.HHE. ML:0 7.0761535E-5 0.18 AML other m 2019-08-19T00:46:46.62
IV.POFI.HHE. ML:1.5 0.0003473917 0.16 AML other m 2019-08-19T00:46:39.20
IV.POFI.HHN. ML:1 9.537692E-5 0.14 AML other m 2019-08-19T00:46:39.36
IV.POFI.HNE. ML:1.6 0.0003977941 0.17 AML other m 2019-08-19T00:46:39.21
IV.POFI.HNN. ML:1.1 0.00013726325 0.67 AML other m 2019-08-19T00:46:44.14
IV.VVLD.HHE. ML:1.2 0.0001164731 0.22 AML other m 2019-08-19T00:46:41.36
IV.VVLD.HHN. ML:1.1 9.8719975E-5 0.14 AML other m 2019-08-19T00:46:41.18
IV.VVLD.HNE. ML:1.1 0.00010047054 0.21 AML other m 2019-08-19T00:46:41.26
IV.VVLD.HNN. ML:1.2 0.00013145415 0.31 AML other m 2019-08-19T00:46:41.33
IV.LRP.EHE. ML:1 5.9095825E-5 0.28 AML other m 2019-08-19T00:46:45.87
IV.LRP.EHN. ML:0.5 1.919595E-5 0.24 AML other m 2019-08-19T00:46:45.63
IV.CERA.HNE. ML:1.2 8.8346385E-5 0.32 AML other m 2019-08-19T00:46:44.68
IV.CERA.HNN. ML:1.2 7.796998E-5 0.24 AML other m 2019-08-19T00:46:43.78
IV.INTR.HHE. ML:0.8 3.471322E-5 0.14 AML other m 2019-08-19T00:46:43.80
IV.INTR.HHN. ML:1 6.2747015E-5 0.16 AML other m 2019-08-19T00:46:44.71
IV.INTR.HNE. ML:1.4 0.00012939245 1.48 AML other m 2019-08-19T00:46:40.63
IV.INTR.HNN. ML:1.4 0.000130676285 0.62 AML other m 2019-08-19T00:46:42.59
IV.CERA.HHE. ML:1.2 7.932763E-5 0.28 AML other m 2019-08-19T00:46:44.67
IV.CERA.HHN. ML:1.2 8.031175E-5 0.24 AML other m 2019-08-19T00:46:43.77
IV.RNI2.HNE. ML:1.2 6.8272375E-5 0.2 AML other m 2019-08-19T00:46:46.62
IV.RNI2.HNN. ML:1.1 5.9054965E-5 0.3 AML other m 2019-08-19T00:46:48.70
IV.LPEL.HNE. ML:1.6 0.0001292068 0.64 AML other m 2019-08-19T00:46:43.60
IV.LPEL.HNN. ML:1.6 0.000138821075 0.95 AML other m 2019-08-19T00:46:42.33
IV.LPEL.HHE. ML:1.1 3.8010995E-5 0.12 AML other m 2019-08-19T00:46:48.18
IV.LPEL.HHN. ML:1.1 4.169741E-5 0.2 AML other m 2019-08-19T00:46:48.20
IV.MIDA.HHE. ML:0.9 2.9132415E-5 0.2 AML other m 2019-08-19T00:46:48.44
IV.MIDA.HHN. ML:0.9 3.0855155E-5 0.22 AML other m 2019-08-19T00:46:47.08
IV.MIDA.HNE. ML:0.9 2.7793605E-5 0.4 AML other m 2019-08-19T00:46:51.15
IV.MIDA.HNN. ML:2 0.000328191 1.14 AML other m 2019-08-19T00:46:55.66
IV.T0110.HHE. ML:1 3.076904E-5 0.22 AML other m 2019-08-19T00:46:50.64
IV.T0110.HHN. ML:1.1 3.625767E-5 0.18 AML other m 2019-08-19T00:46:50.30
IV.GIUL.HHE. ML:1 2.3237905E-5 0.16 AML other m 2019-08-19T00:46:51.34
IV.GIUL.HHN. ML:0.8 1.3537855E-5 0.28 AML other m 2019-08-19T00:46:51.23
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