Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 29-10-2020 and time 14:47:20 (UTC) in region 5 km NE Ovindoli (AQ)

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

  • 29-10-2020 14:47:20 (UTC)
  • 29-10-2020 15:47:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.16, 13.57 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ovindoli AQ 6 1227 1227
Rocca di Mezzo AQ 7 1526 2753
Tione degli Abruzzi AQ 7 310 3063
Fontecchio AQ 8 369 3432
Celano AQ 9 11017 14449
Secinaro AQ 9 359 14808
Aielli AQ 9 1475 16283
Fagnano Alto AQ 10 418 16701
Cerchio AQ 11 1635 18336
Rocca di Cambio AQ 11 533 18869
Gagliano Aterno AQ 11 254 19123
Collarmele AQ 12 894 20017
Acciano AQ 12 327 20344
Villa Sant'Angelo AQ 13 424 20768
Caporciano AQ 13 230 20998
Castelvecchio Subequo AQ 13 982 21980
Prata d'Ansidonia AQ 13 496 22476
Molina Aterno AQ 14 386 22862
San Demetrio ne' Vestini AQ 14 1854 24716
Castel di Ieri AQ 15 303 25019
Sant'Eusanio Forconese AQ 15 394 25413
Navelli AQ 16 554 25967
San Pio delle Camere AQ 16 661 26628
Massa d'Albe AQ 16 1476 28104
Ocre AQ 16 1167 29271
San Benedetto in Perillis AQ 16 113 29384
Fossa AQ 16 721 30105
Pescina AQ 17 4133 34238
San Benedetto dei Marsi AQ 18 3909 38147
Carapelle Calvisio AQ 18 87 38234
Poggio Picenze AQ 18 1136 39370
Collepietro AQ 18 237 39607
Barisciano AQ 19 1828 41435
Avezzano AQ 19 42515 83950
Magliano de' Marsi AQ 19 3690 87640
Goriano Sicoli AQ 19 569 88209
Castelvecchio Calvisio AQ 19 153 88362

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SE of L'Aquila (69753 inhabitants)
53 Km W of Chieti (51815 inhabitants)
57 Km S of Teramo (54892 inhabitants)
62 Km SW of Montesilvano (53738 inhabitants)
63 Km SW of Pescara (121014 inhabitants)
68 Km E of Tivoli (56533 inhabitants)
72 Km E of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Velletri (53303 inhabitants)
88 Km SE of Terni (111501 inhabitants)
95 Km E of Roma (2864731 inhabitants)
95 Km NE of Latina (125985 inhabitants)
99 Km NE 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
Reviewed
Rev100 		ML 1.1 2020-10-29
14:47:20		 42.16 13.57 11 2020-10-29
14:55:38		 Sala Sismica INGV-Roma 84239351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-29 14:47:20 ± 0.11
Latitude 42.16 ± 0.01
Longitude 13.57 ± 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 84239351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 861
Semi-minor axis of confidence ellipse (meter) 387
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 860
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30577
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 84239351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-29 14:55:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VCEL.EHZ. 2020-10-29T14:47:32.20 0.1 undecidable manual S 40 0.3058 50 0.4 92
IV.VVLD.HHZ. 2020-10-29T14:47:31.80 0.1 undecidable manual S 173 0.2932 50 0.35 97
IV.INTR.HHZ. 2020-10-29T14:47:30.80 0.1 undecidable manual S 121 0.2869 50 -0.45 86
IV.GIGS.HHN. 2020-10-29T14:47:30.94 0.1 undecidable manual S 360 0.2923 50 -0.46 90
IV.TERO.HHZ. 2020-10-29T14:47:29.41 3.0 undecidable manual P -0.61 0
IV.SULC.HNZ. 2020-10-29T14:47:29.19 3.0 undecidable manual P 0
IV.PTQR.HHZ. 2020-10-29T14:47:28.40 0.3 undecidable manual S 223 0.1898 50 0.03 74
IV.T0110.HHZ. 2020-10-29T14:47:27.30 0.1 undecidable manual S 65 0.1646 121 -0.3 97
IV.VCEL.EHZ. 2020-10-29T14:47:27.09 0.1 undecidable manual P 40 0.3058 50 0.18 97
IV.GIGS.HHN. 2020-10-29T14:47:26.48 0.1 undecidable manual P 360 0.2923 50 -0.2 95
IV.INTR.HHZ. 2020-10-29T14:47:26.59 0.3 undecidable manual P 121 0.2869 50 -0.01 73
IV.VVLD.HHZ. 2020-10-29T14:47:26.94 0.1 undecidable manual P 173 0.2932 50 0.23 98
IV.FAGN.HHZ. 2020-10-29T14:47:25.90 0.1 undecidable manual S 4 0.1052 133 0.15 98
IV.T0110.HHZ. 2020-10-29T14:47:24.59 0.1 positive manual P 65 0.1646 121 0.1 100
IV.PTQR.HHZ. 2020-10-29T14:47:24.40 0.3 undecidable manual P 223 0.1898 50 -0.53 64
MN.AQU.HNZ. 2020-10-29T14:47:23.92 3.0 undecidable manual P 327 0.2212 97 -1.47 0
IV.FAGN.HHZ. 2020-10-29T14:47:23.78 0.1 undecidable manual P 4 0.1052 133 0.36 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FAGN.HHN. ML:1.8 0.0006745 0.74 AML other m 2020-10-29T14:47:26.56
IV.FAGN.HHE. ML:1.7 0.000602 0.66 AML other m 2020-10-29T14:47:27.11
IV.T0110.HHE. ML:1.4 0.000192 0.26 AML other m 2020-10-29T14:47:27.81
IV.T0110.HHN. ML:1.2 0.0001315 1.38 AML other m 2020-10-29T14:47:28.21
IV.INTR.HHE. ML:1 5.125E-5 1.12 AML other m 2020-10-29T14:47:31.16
IV.INTR.HHN. ML:1.2 6.445E-5 1.1 AML other m 2020-10-29T14:47:32.82
IV.VVLD.HHN. ML:0.8 2.785E-5 1.28 AML other m 2020-10-29T14:47:32.20
IV.VVLD.HHE. ML:0.8 2.365E-5 0.48 AML other m 2020-10-29T14:47:34.73
IV.VCEL.EHE. ML:1.1 5.5135945E-5 0.1792 AML other m 2020-10-29T14:47:33.86
IV.VCEL.EHN. ML:1.1 4.837848E-5 0.1856 AML other m 2020-10-29T14:47:32.99
IV.TERO.HHE. ML:0.8 1.5705895E-5 0.1024 AML other m 2020-10-29T14:47:38.08
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