Earthquake with magnitude of ML 1.2 on date 21-10-2021 and time 04:36:02 (UTC) in region 2 km S Navelli (AQ)

A magnitude ML 1.2 earthquake occured in region: 2 km S Navelli (AQ), on

  • 21-10-2021 04:36:02 (UTC)
  • 21-10-2021 06:36:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.219, 13.727 at 7 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
Navelli AQ 2 554 554
Collepietro AQ 5 237 791
Acciano AQ 5 327 1118
San Benedetto in Perillis AQ 5 113 1231
Caporciano AQ 6 230 1461
Capestrano AQ 7 884 2345
Tione degli Abruzzi AQ 8 310 2655
Molina Aterno AQ 8 386 3041
Secinaro AQ 8 359 3400
Bussi sul Tirino PE 8 2518 5918
San Pio delle Camere AQ 10 661 6579
Castelvecchio Subequo AQ 10 982 7561
Carapelle Calvisio AQ 10 87 7648
Fontecchio AQ 10 369 8017
Popoli PE 10 5172 13189
Gagliano Aterno AQ 10 254 13443
Castelvecchio Calvisio AQ 11 153 13596
Castel di Ieri AQ 12 303 13899
Prata d'Ansidonia AQ 12 496 14395
Calascio AQ 12 137 14532
Ofena AQ 13 506 15038
Vittorito AQ 13 873 15911
Fagnano Alto AQ 13 418 16329
Villa Santa Lucia degli Abruzzi AQ 14 123 16452
Pescosansonesco PE 14 517 16969
Castiglione a Casauria PE 14 831 17800
Corfinio AQ 14 1051 18851
Raiano AQ 15 2815 21666
Corvara PE 15 256 21922
Santo Stefano di Sessanio AQ 15 111 22033
Tocco da Casauria PE 16 2688 24721
Brittoli PE 16 290 25011
San Demetrio ne' Vestini AQ 16 1854 26865
Goriano Sicoli AQ 16 569 27434
Castel del Monte AQ 16 413 27847
Barisciano AQ 16 1828 29675
Villa Sant'Angelo AQ 17 424 30099
Pietranico PE 17 484 30583
Carpineto della Nora PE 17 662 31245
Torre de' Passeri PE 17 3147 34392
Rocca di Mezzo AQ 17 1526 35918
Roccacasale AQ 17 693 36611
Pratola Peligna AQ 18 7577 44188
Sant'Eusanio Forconese AQ 18 394 44582
Civitaquana PE 19 1247 45829
Poggio Picenze AQ 19 1136 46965
Aielli AQ 19 1475 48440
Bolognano PE 19 1108 49548
Collarmele AQ 19 894 50442
Vicoli PE 19 390 50832
Rocca di Cambio AQ 20 533 51365
Ovindoli AQ 20 1227 52592
Salle PE 20 308 52900
Cugnoli PE 20 1506 54406
Prezza AQ 20 945 55351
Cerchio AQ 20 1635 56986

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of L'Aquila (69753 inhabitants)
39 Km W of Chieti (51815 inhabitants)
48 Km SW of Montesilvano (53738 inhabitants)
49 Km SW of Pescara (121014 inhabitants)
49 Km S of Teramo (54892 inhabitants)
82 Km E of Tivoli (56533 inhabitants)
86 Km E of Guidonia Montecelio (88673 inhabitants)
97 Km E of Terni (111501 inhabitants)
98 Km NE of Velletri (53303 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 2021-10-21
04:36:02
42.219 13.7268 7 2021-10-21
04:40:26
Sala Sismica INGV-Roma 96823581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-21 04:36:02 ± 0.11
Latitude 42.2190 ± 0.0081
Longitude 13.7268 ± 0.0085
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96823581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 841
Semi-minor axis of confidence ellipse (meter) 650
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 17
Circular confidence region, given by single value of horizontal uncertainty (meter) 840
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.37951
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:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 96823581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-21 04:40:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VVLD.HNN. 2021-10-21T04:36:17.07 0.3 undecidable manual S 192 0.357 50 0.23 68
IV.VCEL.EHZ. 2021-10-21T04:36:11.00 0.6 undecidable manual S 26 0.1943 108 0.26 47
IV.LPEL.HHZ. 2021-10-21T04:36:10.79 0.6 undecidable manual P 117 0.3795 50 -0.52 43
IV.VVLD.HNN. 2021-10-21T04:36:10.71 0.1 undecidable manual P 192 0.357 50 -0.22 91
IV.INTR.HNZ. 2021-10-21T04:36:08.93 0.3 undecidable manual P 147 0.2455 104 0.42 67
IV.VCEL.EHZ. 2021-10-21T04:36:07.62 0.6 negative manual P 26 0.1943 108 0.2 47
IV.FAGN.HHZ. 2021-10-21T04:36:07.89 0.3 undecidable manual S 294 0.116 118 -0.04 75
IV.T0110.HHZ. 2021-10-21T04:36:05.60 0.1 undecidable manual S 74 0.0378 149 -0.09 100
IV.FAGN.HHZ. 2021-10-21T04:36:05.81 0.1 positive manual P 294 0.116 118 0.02 100
IV.T0110.HHZ. 2021-10-21T04:36:04.38 0.1 positive manual P 74 0.0378 149 -0.12 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T0110.HHN. ML:0 0.0010165 0.28 AML other m 2021-10-21T04:36:05.85
IV.T0110.HHE. ML:0 0.00059 1.36 AML other m 2021-10-21T04:36:06.89
IV.FAGN.HHN. ML:1.3 0.0002485 0.6 AML other m 2021-10-21T04:36:09.18
IV.FAGN.HHE. ML:1.4 0.000308 0.32 AML other m 2021-10-21T04:36:09.71
IV.VCEL.EHN. ML:1.2 0.000109 0.32 AML other m 2021-10-21T04:36:12.28
IV.VCEL.EHE. ML:1.2 0.000121 0.98 AML other m 2021-10-21T04:36:14.24
IV.LPEL.HHN. ML:1.1 4.6E-5 0.9 AML other m 2021-10-21T04:36:17.23
IV.LPEL.HHE. ML:1.1 3.985E-5 0.52 AML other m 2021-10-21T04:36:18.75
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download