Earthquake with magnitude of ML 1.1 on date 09-10-2021 and time 02:11:11 (UTC) in region 2 km NE Barete (AQ)

A magnitude ML 1.1 earthquake occured in region: 2 km NE Barete (AQ), on

  • 09-10-2021 02:11:11 (UTC)
  • 09-10-2021 04:11:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.46, 13.297 at 15 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
Barete AQ 2 737 737
Pizzoli AQ 3 4326 5063
Cagnano Amiterno AQ 6 1369 6432
Capitignano AQ 7 665 7097
Montereale AQ 8 2581 9678
Scoppito AQ 10 3727 13405
Campotosto AQ 13 542 13947
L'Aquila AQ 15 69753 83700
Borbona RI 15 617 84317
Crognaleto TE 18 1297 85614
Posta RI 18 694 86308
Antrodoco RI 18 2588 88896
Tornimparte AQ 19 3187 92083
Amatrice RI 19 2657 94740
Lucoli AQ 19 1011 95751
Micigliano RI 20 127 95878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NW of L'Aquila (69753 inhabitants)
40 Km SW of Teramo (54892 inhabitants)
54 Km E of Terni (111501 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
69 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
73 Km W of Chieti (51815 inhabitants)
73 Km SE of Foligno (57155 inhabitants)
75 Km W of Pescara (121014 inhabitants)
92 Km NE of Roma (2864731 inhabitants)
96 Km NE of Velletri (53303 inhabitants)
98 Km E of Viterbo (67173 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.1 2021-10-09
02:11:11
42.4603 13.2973 15 2021-10-09
02:32:12
Sala Sismica INGV-Roma 96361171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-09 02:11:11 ± 0.13
Latitude 42.4603 ± 0.0036
Longitude 13.2973 ± 0.0061
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96361171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 437
Semi-minor axis of confidence ellipse (meter) 305
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 325
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.07824
Epicentral distance of station farthest from the epicenter (degree) 0.3966
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 96361171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-09 02:32:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2021-10-09T02:11:25.97 0.6 undecidable manual S 340 0.3966 97 0.42 44
IV.TERO.HHZ. 2021-10-09T02:11:21.99 0.6 undecidable manual S 54 0.2779 102 -0.09 48
IV.LNSS.HHZ. 2021-10-09T02:11:20.79 0.6 undecidable manual S 307 0.2365 105 -0.11 49
IV.FIAM.HNZ. 2021-10-09T02:11:20.83 0.6 undecidable manual S 215 0.2338 106 0.02 49
IV.NRCA.HHZ. 2021-10-09T02:11:19.47 0.6 positive manual P 340 0.3966 97 -0.05 48
IV.SMA1.EHZ. 2021-10-09T02:11:19.40 0.6 undecidable manual S 9 0.1727 115 0.3 47
IV.GIGS.HJZ. 2021-10-09T02:11:19.99 0.6 undecidable manual S 92 0.2032 109 0.05 50
IV.T1299.HNZ. 2021-10-09T02:11:18.96 0.6 undecidable manual S 356 0.1745 114 -0.19 48
MN.AQU.HNZ. 2021-10-09T02:11:18.16 0.6 undecidable manual S 143 0.1331 124 0.09 50
IV.CAMP.HHZ. 2021-10-09T02:11:17.46 0.3 undecidable manual S 47 0.1115 131 -0.11 73
IV.TERO.HHZ. 2021-10-09T02:11:17.58 0.6 undecidable manual P 54 0.2779 102 0.06 48
IV.SMA1.EHZ. 2021-10-09T02:11:16.08 1.0 negative manual P 9 0.1727 115 0.29 24
IV.LNSS.HHZ. 2021-10-09T02:11:16.72 0.1 undecidable manual P 307 0.2365 105 -0.12 97
IV.FIAM.HNZ. 2021-10-09T02:11:16.78 0.1 undecidable manual P 215 0.2338 106 0 98
IV.CAMP.HHZ. 2021-10-09T02:11:15.00 0.1 undecidable manual P 47 0.1115 131 0.08 100
MN.AQU.HNZ. 2021-10-09T02:11:15.56 0.1 undecidable manual P 143 0.1331 124 0.36 94
IV.GIGS.HJZ. 2021-10-09T02:11:15.82 0.1 undecidable manual P 92 0.2032 109 -0.47 90
IV.T1299.HNZ. 2021-10-09T02:11:15.76 0.1 undecidable manual P 356 0.1745 114 -0.06 99
IV.RM33.EHZ. 2021-10-09T02:11:14.41 0.1 positive manual P 309 0.0782 143 -0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.5 0.0002295 0.28 AML other m 2021-10-09T02:11:19.69
IV.SMA1.EHE. ML:1.5 0.00020568745 0.2992 AML other m 2021-10-09T02:11:19.80
IV.RM33.EHE. ML:0.9 8.1871605E-5 0.12 AML other m 2021-10-09T02:11:16.95
IV.RM33.EHN. ML:0.9 8.6786565E-5 0.1408 AML other m 2021-10-09T02:11:16.26
IV.RM33.HNE. ML:1 0.000106256855 0.1088 AML other m 2021-10-09T02:11:16.67
IV.RM33.HNN. ML:1 9.453536E-5 0.0992 AML other m 2021-10-09T02:11:16.26
IV.LNSS.HNN. ML:1.6 0.00021457605 0.8896 AML other m 2021-10-09T02:11:20.87
IV.LNSS.HHE. ML:1 4.983364E-5 0.08 AML other m 2021-10-09T02:11:21.53
IV.LNSS.HHN. ML:1 5.5658369E-5 0.2816 AML other m 2021-10-09T02:11:21.53
IV.TERO.HHE. ML:1.3 9.079689E-5 0.2416 AML other m 2021-10-09T02:11:22.32
IV.TERO.HHN. ML:0.9 3.276585E-5 0.0992 AML other m 2021-10-09T02:11:22.44
IV.NRCA.HHE. ML:1.2 4.625131E-5 0.68 AML other m 2021-10-09T02:11:26.02
IV.NRCA.HHN. ML:0.9 2.660018E-5 0.1008 AML other m 2021-10-09T02:11:26.34
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