ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.1 on date 14-03-2019 and time 03:57:46 (Italy) in region 5 km SE Opi (AQ)

A magnitude ML 1.1 earthquake occured in region: 5 km SE Opi (AQ), on

  • 14-03-2019 02:57:46 (UTC)
  • 14-03-2019 03:57:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.75, 13.88 at 13 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 5 420 420
Villetta Barrea AQ 5 653 1073
Civitella Alfedena AQ 6 296 1369
San Donato Val di Comino FR 7 2107 3476
Settefrati FR 9 728 4204
Pescasseroli AQ 10 2203 6407
Barrea AQ 10 726 7133
Picinisco FR 11 1218 8351
Gallinaro FR 12 1269 9620
Alvito FR 13 2713 12333
Alfedena AQ 13 864 13197
Scontrone AQ 14 574 13771
Villa Latina FR 15 1241 15012
Atina FR 16 4316 19328
San Biagio Saracinisco FR 16 349 19677
Posta Fibreno FR 16 1139 20816
Pizzone IS 16 329 21145
Vicalvi FR 16 783 21928
Montenero Val Cocchiara IS 16 538 22466
Campoli Appennino FR 16 1725 24191
Scanno AQ 17 1847 26038
Pescosolido FR 18 1555 27593
Fontechiari FR 19 1303 28896
Casalvieri FR 19 2698 31594
Castel San Vincenzo IS 19 516 32110
Casalattico FR 19 574 32684
Belmonte Castello FR 20 739 33423
Castel di Sangro AQ 20 6538 39961

Municipalities with at least 50000 inhabitants

An earthquake occurred to
71 Km SW of Chieti (51815 inhabitants)
78 Km SE of L'Aquila (69753 inhabitants)
84 Km NW of Caserta (76326 inhabitants)
85 Km SW of Pescara (121014 inhabitants)
87 Km E of Latina (125985 inhabitants)
88 Km S of Montesilvano (53738 inhabitants)
91 Km NW of Aversa (53047 inhabitants)
91 Km E of Velletri (53303 inhabitants)
92 Km E of Tivoli (56533 inhabitants)
95 Km N of Giugliano in Campania (122974 inhabitants)
98 Km N of Marano di Napoli (59874 inhabitants)
98 Km NW of Acerra (59573 inhabitants)
99 Km NW of Afragola (65057 inhabitants)
99 Km E of Guidonia Montecelio (88673 inhabitants)
100 Km NW of Casoria (77642 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 2019-03-14
02:57:46
41.75 13.88 13 2019-03-14
04:13:51
Sala Sismica INGV-Roma 66521481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-14 02:57:46 ± 0.24
Latitude 41.75 ± 0.01
Longitude 13.88 ± 0.01
Depth (km) 13 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66521481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 627
Semi-minor axis of confidence ellipse (meter) 318
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.12591
Epicentral distance of station farthest from the epicenter (degree) 0.2635
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 66521481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-14 04:13:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.INTR.HHZ. 2019-03-14T02:57:56.59 0.6 undecidable manual S 5 0.2635 96 -0.26 46
IV.LRP.EHZ. 2019-03-14T02:57:56.15 0.6 undecidable manual S 245 0.2383 97 0.04 48
IV.VVLD.HHZ. 2019-03-14T02:57:55.53 0.6 undecidable manual S 303 0.223 98 -0.14 48
IV.RNI2.HHZ. 2019-03-14T02:57:55.18 0.3 undecidable manual S 102 0.2113 98 -0.14 70
IV.CERA.HHZ. 2019-03-14T02:57:54.26 0.6 undecidable manual S 145 0.1844 101 -0.28 45
IV.LRP.EHZ. 2019-03-14T02:57:52.01 1.0 undecidable manual P 245 0.2383 97 -0.06 24
IV.INTR.HHZ. 2019-03-14T02:57:52.34 0.6 undecidable manual P 5 0.2635 96 -0.16 48
IV.POFI.HHZ. 2019-03-14T02:57:52.95 0.6 undecidable manual S 256 0.1259 115 0.07 48
IV.RNI2.HHZ. 2019-03-14T02:57:51.99 0.1 undecidable manual P 102 0.2113 98 0.37 91
IV.VVLD.HHZ. 2019-03-14T02:57:51.70 0.1 undecidable manual P 303 0.223 98 -0.12 97
IV.POFI.HHZ. 2019-03-14T02:57:50.30 0.1 undecidable manual P 256 0.1259 115 0.09 100
IV.CERA.HHZ. 2019-03-14T02:57:50.93 0.1 undecidable manual P 145 0.1844 101 -0.24 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHE. ML:1.1 6.915E-5 1.34 AML other m 2019-03-14T02:57:56.05
IV.VVLD.HHN. ML:1 5.84E-5 1.4 AML other m 2019-03-14T02:57:56.76
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