Earthquake with magnitude of ML 1.1 on date 09-09-2021 and time 10:02:28 (UTC) in region 6 km E Antrodoco (RI)

A magnitude ML 1.1 earthquake occured in region: 6 km E Antrodoco (RI), on

  • 09-09-2021 10:02:28 (UTC)
  • 09-09-2021 12:02:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.443, 13.146 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Antrodoco RI 6 2588 2588
Cagnano Amiterno AQ 7 1369 3957
Micigliano RI 8 127 4084
Borbona RI 8 617 4701
Borgo Velino RI 8 972 5673
Posta RI 10 694 6367
Castel Sant'Angelo RI 11 1308 7675
Barete AQ 11 737 8412
Scoppito AQ 12 3727 12139
Montereale AQ 12 2581 14720
Pizzoli AQ 12 4326 19046
Capitignano AQ 15 665 19711
Cittaducale RI 17 6828 26539
Petrella Salto RI 18 1197 27736
Concerviano RI 19 291 28027
Cittareale RI 20 482 28509
Fiamignano RI 20 1413 29922
Leonessa RI 20 2435 32357

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km W of L'Aquila (69753 inhabitants)
43 Km E of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
60 Km NE of Guidonia Montecelio (88673 inhabitants)
60 Km NE of Tivoli (56533 inhabitants)
68 Km SE of Foligno (57155 inhabitants)
82 Km NE of Roma (2864731 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
85 Km W of Chieti (51815 inhabitants)
86 Km E of Viterbo (67173 inhabitants)
88 Km W of Pescara (121014 inhabitants)
89 Km NE of Velletri (53303 inhabitants)
96 Km SE of Perugia (166134 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 1.1 2021-09-09
10:02:28
42.4433 13.1463 10 2021-09-09
10:11:39
Sala Sismica INGV-Roma 95231271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-09 10:02:28 ± 0.11
Latitude 42.4433 ± 0.0063
Longitude 13.1463 ± 0.0085
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 95231271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 665
Semi-minor axis of confidence ellipse (meter) 638
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 670
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31476
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 95231271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-09 10:11:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
TV.SU26.HHZ. 2021-09-09T10:04:16.15 3.0 undecidable manual Sn 1.76 0
IV.HPAC.HHZ. 2021-09-09T10:04:15.34 3.0 undecidable manual Sn -7.56 0
IV.EPZF.HHZ. 2021-09-09T10:04:13.45 3.0 undecidable manual Sg 17.870001 0
IV.VOBA.EHZ. 2021-09-09T10:04:13.91 3.0 undecidable manual Sn -0.64 0
GU.GSCL.HHZ. 2021-09-09T10:04:07.55 3.0 undecidable manual Sg 19.719999 0
IV.NDIM.HNZ. 2021-09-09T10:03:59.32 3.0 undecidable manual Sn 4.08 0
IV.MTGR.HHZ. 2021-09-09T10:03:48.14 3.0 undecidable manual Sn -4.43 0
IV.ZCCA.HNZ. 2021-09-09T10:03:46.39 3.0 undecidable manual Sn 2.76 0
GU.BURY.HHZ. 2021-09-09T10:03:44.15 3.0 undecidable manual Pg 17.639999 0
IV.LADO.EHZ. 2021-09-09T10:03:42.22 3.0 undecidable manual Sn -2.64 0
IV.TDS.HHZ. 2021-09-09T10:03:31.72 3.0 undecidable manual Sn 1.97 0
IV.PESA.HHZ. 2021-09-09T10:03:29.09 3.0 undecidable manual Sg 8.85 0
IV.ISPIC.EHZ. 2021-09-09T10:03:29.96 3.0 undecidable manual Pn 4.77 0
IV.RIBO.EHZ.01 2021-09-09T10:03:27.94 3.0 undecidable manual Sg 9.35 0
IV.FIR.HHZ. 2021-09-09T10:03:25.19 3.0 undecidable manual Sn -4.33 0
IV.CADC.EHZ. 2021-09-09T10:03:23.38 3.0 positive manual Pn 1.83 0
IV.PLLN.EHZ. 2021-09-09T10:03:21.11 3.0 negative manual Pg 13.62 0
IV.PTCC.HHZ. 2021-09-09T10:03:19.12 3.0 negative manual Pn -5.02 0
GU.GSCL.HHZ. 2021-09-09T10:03:17.25 3.0 positive manual Pg 10.5 0
MN.TRI.HHZ. 2021-09-09T10:03:16.38 3.0 positive manual Pn 1.87 0
IV.ALJA.HHZ. 2021-09-09T10:03:11.36 3.0 undecidable manual Pn 0.8 0
GU.POPM.HHZ. 2021-09-09T10:03:08.41 3.0 positive manual Pg 5.92 0
IV.MSRU.HHZ. 2021-09-09T10:03:06.83 3.0 undecidable manual Pn -0.75 0
IV.PII.HHZ. 2021-09-09T10:03:00.05 3.0 negative manual Pn -0.94 0
OT.OT05.EHZ. 2021-09-09T10:02:56.55 3.0 undecidable manual Sn -0.55 0
IV.RIBO.EHZ.01 2021-09-09T10:02:49.43 3.0 negative manual Pn -0.89 0
IV.ARRO.EHZ. 2021-09-09T10:02:40.03 0.6 undecidable manual S 296 0.3112 50 -0.13 48
IV.GAVE.EHZ. 2021-09-09T10:02:40.20 0.6 undecidable manual S 323 0.3103 50 0.08 49
IV.MTMR.EHZ. 2021-09-09T10:02:39.19 3.0 undecidable manual Pg 4.31 0
IV.GIGS.HHN. 2021-09-09T10:02:39.84 0.3 undecidable manual S 88 0.3148 50 -0.41 68
IV.MRLC.HHZ. 2021-09-09T10:02:37.86 3.0 undecidable manual Pn -2.44 0
IV.SMA1.EHZ. 2021-09-09T10:02:37.56 0.6 undecidable manual S 37 0.2329 50 -0.28 47
IV.RDP.HHZ. 2021-09-09T10:02:37.80 3.0 undecidable manual Sn -1.18 0
IV.GIGS.HHN. 2021-09-09T10:02:36.04 0.1 undecidable manual P 88 0.3148 50 0.87 76
IV.CAMP.HHZ. 2021-09-09T10:02:36.84 0.6 undecidable manual S 64 0.214 113 -0.34 47
IV.LNSS.HHZ. 2021-09-09T10:02:35.68 0.6 undecidable manual S 334 0.1772 117 -0.21 48
IV.GAVE.EHZ. 2021-09-09T10:02:35.58 0.6 negative manual P 323 0.3103 50 0.48 45
IV.FIAM.HNZ. 2021-09-09T10:02:35.70 0.6 undecidable manual S 187 0.1763 117 -0.16 49
IV.ARRO.EHZ. 2021-09-09T10:02:34.70 0.6 positive manual P 296 0.3112 50 -0.42 45
IV.RM33.EHZ. 2021-09-09T10:02:33.14 0.6 undecidable manual S 37 0.0827 137 0.21 49
IV.SMA1.EHZ. 2021-09-09T10:02:33.78 0.3 negative manual P 37 0.2329 50 0.01 75
IV.CAMP.HHZ. 2021-09-09T10:02:33.20 0.1 undecidable manual P 64 0.214 113 -0.2 97
IV.LNSS.HHZ. 2021-09-09T10:02:32.61 0.6 negative manual P 334 0.1772 117 -0.04 50
IV.FIAM.HNZ. 2021-09-09T10:02:32.57 0.1 undecidable manual P 187 0.1763 117 -0.06 100
IV.IFOR.HHZ. 2021-09-09T10:02:32.04 3.0 undecidable manual P 1.7 0
IV.RM33.EHZ. 2021-09-09T10:02:31.21 0.1 negative manual P 37 0.0827 137 0.27 98
IV.VBKN.HHZ. 2021-09-09T10:02:31.67 3.0 negative manual P 0.34 0
IV.RNI2.HHZ. 2021-09-09T10:02:23.93 3.0 negative manual P -0.25 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.5 0.0004455 0.26 AML other m 2021-09-09T10:02:33.45
IV.RM33.EHN. ML:1.2 0.00021404655 0.1024 AML other m 2021-09-09T10:02:33.55
IV.LNSS.HHE. ML:1.3 0.0001615 0.12 AML other m 2021-09-09T10:02:35.89
IV.LNSS.HHN. ML:1.2 0.000121589635 0.1792 AML other m 2021-09-09T10:02:35.95
IV.SMA1.EHN. ML:0.8 4.2028585E-5 0.3392 AML other m 2021-09-09T10:02:40.39
IV.SMA1.EHE. ML:1 5.927774E-5 0.2176 AML other m 2021-09-09T10:02:37.96
IV.RM33.HNE. ML:1.5 0.00044722165 0.2624 AML other m 2021-09-09T10:02:33.45
IV.RM33.HNN. ML:1.2 0.00022627915 0.1024 AML other m 2021-09-09T10:02:33.60
IV.ARRO.EHE. ML:0.9 2.8881165E-5 0.1792 AML other m 2021-09-09T10:02:39.96
IV.ARRO.EHN. ML:0.9 2.9182425E-5 0.16 AML other m 2021-09-09T10:02:40.48
IV.GAVE.EHE. ML:0.9 3.012265E-5 0.1536 AML other m 2021-09-09T10:02:42.30
IV.GAVE.EHN. ML:0.8 2.447618E-5 0.1408 AML other m 2021-09-09T10:02:41.84
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