Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 22-11-2020 and time 17:58:48 (UTC) in region 2 km N Lucoli (AQ)

A magnitude ML 1.4 earthquake occured in region: 2 km N Lucoli (AQ), on

  • 22-11-2020 17:58:48 (UTC)
  • 22-11-2020 18:58:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.31, 13.34 at 10 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
Lucoli AQ 3 1011 1011
Tornimparte AQ 4 3187 4198
L'Aquila AQ 7 69753 73951
Scoppito AQ 9 3727 77678
Ocre AQ 12 1167 78845
Fossa AQ 13 721 79566
Pizzoli AQ 14 4326 83892
Rocca di Cambio AQ 15 533 84425
Borgorose RI 16 4591 89016
Sant'Eusanio Forconese AQ 16 394 89410
Barete AQ 16 737 90147
Poggio Picenze AQ 17 1136 91283
Villa Sant'Angelo AQ 17 424 91707
Fiamignano RI 18 1413 93120
Cagnano Amiterno AQ 19 1369 94489
San Demetrio ne' Vestini AQ 19 1854 96343
Rocca di Mezzo AQ 19 1526 97869
Pescorocchiano RI 19 2075 99944

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km SW of L'Aquila (69753 inhabitants)
49 Km SW of Teramo (54892 inhabitants)
59 Km NE of Tivoli (56533 inhabitants)
61 Km NE of Guidonia Montecelio (88673 inhabitants)
63 Km E of Terni (111501 inhabitants)
69 Km W of Chieti (51815 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
74 Km W of Pescara (121014 inhabitants)
84 Km NE of Velletri (53303 inhabitants)
84 Km NE of Roma (2864731 inhabitants)
88 Km SE of Foligno (57155 inhabitants)
98 Km NE of Aprilia (73446 inhabitants)
99 Km NE of Pomezia (62966 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 1.4 2020-11-22
17:58:48		 42.31 13.33 10 2020-11-22
18:13:31		 Sala Sismica INGV-Roma 84949631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-22 17:58:48 ± 0.14
Latitude 42.31 ± 0.01
Longitude 13.33 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84949631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1042
Semi-minor axis of confidence ellipse (meter) 558
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.06565
Epicentral distance of station farthest from the epicenter (degree) 0.67899
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 84949631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-22 18:13:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2020-11-22T17:59:07.47 0.3 undecidable manual S 343 0.5441 50 0.5 64
IV.TERO.HHZ. 2020-11-22T17:59:01.24 0.3 undecidable manual S 33 0.3669 50 -0.49 66
IV.MF5.EHZ. 2020-11-22T17:59:01.73 1.0 negative manual P 8 0.679 50 0.41 21
IV.T0110.HHZ. 2020-11-22T17:59:01.52 0.3 undecidable manual S 104 0.3372 50 0.66 62
IV.SMA1.EHZ. 2020-11-22T17:59:00.49 0.6 undecidable manual S 0 0.3157 50 0.26 47
IV.PTQR.HHZ. 2020-11-22T17:58:59.30 0.3 undecidable manual S 171 0.2959 50 -0.33 69
IV.NRCA.HHZ. 2020-11-22T17:58:58.84 0.1 undecidable manual P 343 0.5441 50 -0.16 91
IV.CAMP.HHE. 2020-11-22T17:58:57.39 0.6 undecidable manual S 14 0.2284 111 -0.12 49
IV.T0110.HHZ. 2020-11-22T17:58:55.62 0.1 undecidable manual P 104 0.3372 50 0.16 95
IV.SMA1.EHZ. 2020-11-22T17:58:55.30 0.3 undecidable manual P 0 0.3157 50 0.2 71
IV.TERO.HHZ. 2020-11-22T17:58:55.27 0.3 undecidable manual P 33 0.3669 50 -0.7 61
IV.PTQR.HHZ. 2020-11-22T17:58:54.56 0.3 undecidable manual P 171 0.2959 50 -0.2 71
IV.CAMP.HHE. 2020-11-22T17:58:53.31 0.1 undecidable manual P 14 0.2284 111 -0.23 96
IV.FIAM.HNE. 2020-11-22T17:58:52.57 0.6 undecidable manual P 254 0.1673 118 0.27 48
MN.AQU.HNZ. 2020-11-22T17:58:52.34 0.3 undecidable manual S 53 0.0657 143 0.03 77
MN.AQU.HNZ. 2020-11-22T17:58:50.70 0.1 negative manual P 53 0.0657 143 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHE. ML:1.2 5.873445E-5 0.2304 AML other m 2020-11-22T17:59:01.43
IV.TERO.HHN. ML:1.4 9.125774E-5 0.384 AML other m 2020-11-22T17:59:02.96
IV.TERO.HNE. ML:1.6 0.0001495796 3.1104 AML other m 2020-11-22T17:59:30.31
IV.TERO.HNN. ML:1.8 0.0002081229 1.1776 AML other m 2020-11-22T17:59:23.51
IV.SMA1.EHE. ML:1.2 5.773132E-5 0.3456 AML other m 2020-11-22T17:59:03.45
IV.SMA1.EHN. ML:1.3 7.35224E-5 0.4224 AML other m 2020-11-22T17:59:01.79
IV.T0110.HHE. ML:1.2 5.803439E-5 0.1536 AML other m 2020-11-22T17:59:04.16
IV.T0110.HHN. ML:1.4 9.080407E-5 0.4096 AML other m 2020-11-22T17:59:01.80
IV.NRCA.HHE. ML:1.4 5.244537E-5 0.128 AML other m 2020-11-22T17:59:09.72
IV.NRCA.HHN. ML:1.1 2.6115594E-5 0.1152 AML other m 2020-11-22T17:59:09.40
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