Earthquake with magnitude of ML 1.2 on date 01-10-2020 and time 19:53:07 (UTC) in region 5 km SE Opi (AQ)

A magnitude ML 1.2 earthquake occured in region: 5 km SE Opi (AQ), on

  • 01-10-2020 19:53:07 (UTC)
  • 01-10-2020 21:53:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.74, 13.86 at 23 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
San Donato Val di Comino FR 6 2107 2527
Villetta Barrea AQ 7 653 3180
Civitella Alfedena AQ 7 296 3476
Settefrati FR 8 728 4204
Pescasseroli AQ 9 2203 6407
Picinisco FR 11 1218 7625
Gallinaro FR 11 1269 8894
Barrea AQ 11 726 9620
Alvito FR 12 2713 12333
Alfedena AQ 15 864 13197
Villa Latina FR 15 1241 14438
Posta Fibreno FR 15 1139 15577
Atina FR 15 4316 19893
Vicalvi FR 15 783 20676
Scontrone AQ 15 574 21250
Campoli Appennino FR 15 1725 22975
San Biagio Saracinisco FR 15 349 23324
Pizzone IS 17 329 23653
Pescosolido FR 17 1555 25208
Fontechiari FR 17 1303 26511
Casalvieri FR 17 2698 29209
Montenero Val Cocchiara IS 17 538 29747
Casalattico FR 18 574 30321
Scanno AQ 18 1847 32168
Belmonte Castello FR 19 739 32907
Broccostella FR 19 2741 35648
Castel San Vincenzo IS 19 516 36164

Municipalities with at least 50000 inhabitants

An earthquake occurred to
72 Km SW of Chieti (51815 inhabitants)
78 Km SE of L'Aquila (69753 inhabitants)
84 Km NW of Caserta (76326 inhabitants)
85 Km E of Latina (125985 inhabitants)
85 Km SW of Pescara (121014 inhabitants)
89 Km S of Montesilvano (53738 inhabitants)
90 Km E of Velletri (53303 inhabitants)
90 Km NW of Aversa (53047 inhabitants)
91 Km E of Tivoli (56533 inhabitants)
95 Km NW of Giugliano in Campania (122974 inhabitants)
98 Km N of Marano di Napoli (59874 inhabitants)
98 Km E of Guidonia Montecelio (88673 inhabitants)
98 Km NW of Acerra (59573 inhabitants)
99 Km NW of Afragola (65057 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
Reviewed
Rev100
ML 1.2 2020-10-01
19:53:07
41.74 13.86 23 2020-10-01
19:57:09
Sala Sismica INGV-Roma 83422681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-01 19:53:07 ± 0.25
Latitude 41.74 ± 0.01
Longitude 13.86 ± 0.01
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83422681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 775
Semi-minor axis of confidence ellipse (meter) 622
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 28
Circular confidence region, given by single value of horizontal uncertainty (meter) 780
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.11421
Epicentral distance of station farthest from the epicenter (degree) 0.48923
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 83422681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-01 19:57:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.T0110.HHZ. 2020-10-01T19:53:25.49 0.6 undecidable manual S 353 0.4892 105 0.56 43
IV.LPEL.HHZ. 2020-10-01T19:53:21.45 0.6 undecidable manual S 38 0.3858 110 -0.56 44
IV.MIDA.HHZ. 2020-10-01T19:53:19.69 0.6 undecidable manual S 109 0.3103 116 -0.25 48
IV.RNI2.HHZ. 2020-10-01T19:53:18.24 0.3 undecidable manual S 100 0.2212 126 0.58 67
IV.T0110.HHZ. 2020-10-01T19:53:17.73 1.0 undecidable manual P 353 0.4892 105 0.14 24
IV.VVLD.HHZ. 2020-10-01T19:53:17.44 0.3 undecidable manual S 305 0.2176 127 -0.14 75
IV.CERA.HHZ. 2020-10-01T19:53:16.73 0.3 undecidable manual S 141 0.1871 132 -0.15 75
IV.LPEL.HHZ. 2020-10-01T19:53:15.69 0.6 undecidable manual P 38 0.3858 110 -0.21 48
IV.POFI.HHZ. 2020-10-01T19:53:15.09 0.6 undecidable manual S 257 0.1142 147 -0.37 49
IV.MIDA.HHZ. 2020-10-01T19:53:14.67 0.3 negative manual P 109 0.3103 116 -0.03 75
IV.RNI2.HHZ. 2020-10-01T19:53:13.70 0.1 undecidable manual P 100 0.2212 126 0.31 97
IV.INTR.HHZ. 2020-10-01T19:53:13.77 0.3 positive manual P 7 0.2698 120 -0.31 71
IV.VVLD.HHZ. 2020-10-01T19:53:13.58 0.3 undecidable manual P 305 0.2176 127 0.24 74
IV.POFI.HHZ. 2020-10-01T19:53:12.29 0.3 negative manual P 257 0.1142 147 0.17 77
IV.CERA.HHZ. 2020-10-01T19:53:12.79 0.1 positive manual P 141 0.1871 132 -0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.POFI.HHN. ML:1 6.415E-5 0.54 AML other m 2020-10-01T19:53:15.25
IV.POFI.HHE. ML:1.1 7.35E-5 0.86 AML other m 2020-10-01T19:53:16.60
IV.CERA.HHN. ML:1.1 6.72E-5 0.36 AML other m 2020-10-01T19:53:17.37
IV.VVLD.HHN. ML:1.4 0.00010265 0.18 AML other m 2020-10-01T19:53:17.76
IV.CERA.HHE. ML:1.1 6.275E-5 0.8 AML other m 2020-10-01T19:53:17.84
IV.VVLD.HHE. ML:1.3 9.315E-5 0.62 AML other m 2020-10-01T19:53:17.95
IV.RNI2.HHN. ML:1.5 0.00014 0.16 AML other m 2020-10-01T19:53:18.70
IV.RNI2.HNN. ML:1.5 0.000138 0.2 AML other m 2020-10-01T19:53:18.61
IV.RNI2.HNE. ML:1.6 0.000166 1.14 AML other m 2020-10-01T19:53:18.20
IV.INTR.HHE. ML:1.2 5.945E-5 1.12 AML other m 2020-10-01T19:53:18.31
IV.RNI2.HHE. ML:1.6 0.000176 0.18 AML other m 2020-10-01T19:53:19.20
IV.INTR.HHN. ML:1.3 7.345E-5 0.88 AML other m 2020-10-01T19:53:19.34
IV.MIDA.HHE. ML:1.2 4.84E-5 0.4 AML other m 2020-10-01T19:53:20.22
IV.MIDA.HHN. ML:1.3 7.505E-5 0.26 AML other m 2020-10-01T19:53:20.17
IV.LPEL.HHE. ML:1.3 5.485E-5 1 AML other m 2020-10-01T19:53:23.45
IV.LPEL.HHN. ML:1.2 4.9E-5 1.32 AML other m 2020-10-01T19:53:24.05
IV.T0110.HHN. ML:1.3 3.87E-5 0.82 AML other m 2020-10-01T19:53:27.70
IV.T0110.HHE. ML:1.2 3.655E-5 0.92 AML other m 2020-10-01T19:53:29.36
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