Earthquake with magnitude of ML 1.8 on date 09-11-2021 and time 17:49:24 (UTC) in region 6 km E Leonessa (RI)

A magnitude ML 1.8 earthquake occured in region: 6 km E Leonessa (RI), on

  • 09-11-2021 17:49:24 (UTC)
  • 09-11-2021 18:49:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.572, 13.033 at 12 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
Leonessa RI 6 2435 2435
Posta RI 8 694 3129
Borbona RI 11 617 3746
Monteleone di Spoleto PG 11 599 4345
Cittareale RI 12 482 4827
Micigliano RI 14 127 4954
Poggio Bustone RI 14 2055 7009
Polino TR 16 233 7242
Cantalice RI 16 2755 9997
Rivodutri RI 16 1253 11250
Cascia PG 16 3217 14467
Morro Reatino RI 17 373 14840
Poggiodomo PG 18 117 14957
Antrodoco RI 18 2588 17545
Montereale AQ 18 2581 20126
Borgo Velino RI 19 972 21098
Castel Sant'Angelo RI 20 1308 22406
Labro RI 20 374 22780

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Terni (111501 inhabitants)
39 Km NW of L'Aquila (69753 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
56 Km W of Teramo (54892 inhabitants)
68 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km N of Tivoli (56533 inhabitants)
78 Km E of Viterbo (67173 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
88 Km NE of Roma (2864731 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
96 Km W of Chieti (51815 inhabitants)
98 Km W of Pescara (121014 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 1.8 2021-11-09
17:49:24
42.5723 13.0332 12 2021-11-09
18:00:25
Sala Sismica INGV-Roma 97366711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-09 17:49:24 ± 0.06
Latitude 42.5723 ± 0.0045
Longitude 13.0332 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97366711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 448
Semi-minor axis of confidence ellipse (meter) 173
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.64661
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 97366711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-09 18:00:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
HL.VLS.HHZ. 2021-11-09T17:51:21.30 3.0 undecidable manual Pg 15.06 0
IV.CADC.HNZ. 2021-11-09T17:51:18.35 3.0 undecidable manual Sg 9.09 0
IV.VOBA.EHZ. 2021-11-09T17:51:08.09 3.0 undecidable manual Sn -1.11 0
IV.ZEN8.EHZ. 2021-11-09T17:51:05.01 3.0 undecidable manual Sn -2.02 0
IV.MRGE.HHZ. 2021-11-09T17:51:02.08 3.0 undecidable manual Pg 14.77 0
IV.VENL.EHZ. 2021-11-09T17:50:55.68 3.0 undecidable manual Sg 4.44 0
IV.SBPO.HNZ. 2021-11-09T17:50:51.22 3.0 undecidable manual Sn -1.98 0
IV.PII.HHZ. 2021-11-09T17:50:38.27 3.0 undecidable manual Sg 2.87 0
IV.CDRU.HHZ. 2021-11-09T17:50:34.08 3.0 undecidable manual Sn -1.6 0
IV.GIZZ.HHZ. 2021-11-09T17:50:31.45 3.0 negative manual Pg 5.3 0
IV.MSSA.HHZ. 2021-11-09T17:50:22.58 3.0 undecidable manual Pg 6.28 0
GU.CARD.HHZ. 2021-11-09T17:50:02.42 3.0 negative manual Pn -3.77 0
IX.RSF3.HHZ.02 2021-11-09T17:49:55.24 3.0 undecidable manual Pn -2.56 0
IV.NARO.HHZ. 2021-11-09T17:49:41.54 3.0 undecidable manual P -6.63 0
IV.CESI.HHZ. 2021-11-09T17:49:40.76 0.6 undecidable manual S 348 0.4425 92 0.37 43
IV.TERO.HHZ. 2021-11-09T17:49:39.37 0.3 undecidable manual S 83 0.4227 92 -0.44 65
IV.MMO1.EHZ. 2021-11-09T17:49:38.96 0.6 undecidable manual S 33 0.3912 92 0.08 46
IV.CESX.HHZ. 2021-11-09T17:49:37.55 0.6 undecidable manual S 276 0.3301 93 0.48 44
IV.T0110.HHZ. 2021-11-09T17:49:37.41 0.1 undecidable manual P 122 0.6466 91 0.11 88
IV.VCEL.EHZ. 2021-11-09T17:49:37.84 3.0 undecidable manual S -0.12 0
IV.FIAM.HHZ. 2021-11-09T17:49:36.55 0.3 undecidable manual S 168 0.3103 93 0.07 71
IV.CSP1.EHZ. 2021-11-09T17:49:35.51 0.6 negative manual P 14 0.5342 91 0.13 45
IV.FDMO.HHZ. 2021-11-09T17:49:34.35 1.0 undecidable manual P 5 0.4658 92 0.15 23
IV.SMA1.EHZ. 2021-11-09T17:49:34.20 0.3 undecidable manual S 75 0.2293 95 0.1 72
IV.NRCA.HHZ. 2021-11-09T17:49:34.98 0.6 undecidable manual S 13 0.268 94 -0.24 46
IV.MOMA.HHZ. 2021-11-09T17:49:33.24 1.0 undecidable manual P 304 0.411 92 -0.04 23
IV.MMO1.EHZ. 2021-11-09T17:49:33.00 0.6 positive manual P 33 0.3912 92 0.06 47
IV.CESI.HHZ. 2021-11-09T17:49:33.96 1.0 positive manual P 348 0.4425 92 0.15 23
IV.TERO.HHZ. 2021-11-09T17:49:33.19 0.1 undecidable manual P 83 0.4227 92 -0.28 89
IV.ARRO.EHZ. 2021-11-09T17:49:32.26 0.6 undecidable manual S 272 0.197 97 -0.87 38
IV.FIAM.HHZ. 2021-11-09T17:49:31.59 0.1 undecidable manual P 168 0.3103 93 0.04 96
IV.CESX.HHZ. 2021-11-09T17:49:31.92 0.6 negative manual P 276 0.3301 93 0.03 48
IV.GAVE.HNZ. 2021-11-09T17:49:31.81 0.6 undecidable manual S 320 0.1574 103 -0.17 48
IV.SMA1.EHZ. 2021-11-09T17:49:30.32 0.1 undecidable manual P 75 0.2293 95 0.14 95
IV.NRCA.HHZ. 2021-11-09T17:49:30.67 0.6 negative manual P 13 0.268 94 -0.15 47
IV.GAVE.HNZ. 2021-11-09T17:49:29.02 0.6 negative manual P 320 0.1574 103 0.07 49
IV.ARRO.EHZ. 2021-11-09T17:49:29.69 0.1 positive manual P 272 0.197 97 0.07 97
IV.LNSS.HHZ. 2021-11-09T17:49:29.04 0.6 undecidable manual S 10 0.0306 160 -0.08 50
IV.LNSS.HHZ. 2021-11-09T17:49:27.40 0.1 undecidable manual P 10 0.0306 160 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HNN. ML:2 0.00142 0.12 AML other m 2021-11-09T17:49:29.16
IV.LNSS.HHN. ML:2 0.0014 0.1 AML other m 2021-11-09T17:49:29.16
IV.LNSS.HHE. ML:2 0.00142 0.62 AML other m 2021-11-09T17:49:29.16
IV.LNSS.HNE. ML:1.9 0.00121 0.62 AML other m 2021-11-09T17:49:29.47
IV.GAVE.EHE. ML:2.1 0.001075 0.22 AML other m 2021-11-09T17:49:31.93
IV.GAVE.HNN. ML:1.7 0.0003625 0.2 AML other m 2021-11-09T17:49:32.12
IV.GAVE.EHN. ML:2.2 0.0011165 0.2 AML other m 2021-11-09T17:49:32.13
IV.GAVE.HNE. ML:2.1 0.000993 1.86 AML other m 2021-11-09T17:49:33.95
IV.ARRO.EHN. ML:1.6 0.0002425 0.74 AML other m 2021-11-09T17:49:33.69
IV.ARRO.EHE. ML:1.6 0.000263 0.2 AML other m 2021-11-09T17:49:34.27
IV.SMA1.EHN. ML:1.8 0.000352 0.28 AML other m 2021-11-09T17:49:34.50
IV.SMA1.EHE. ML:2.1 0.0007855 0.54 AML other m 2021-11-09T17:49:34.69
IV.NRCA.HHE. ML:1.8 0.0003355 0.1 AML other m 2021-11-09T17:49:35.28
IV.NRCA.HHN. ML:1.6 0.0001725 1.08 AML other m 2021-11-09T17:49:36.30
IV.MOMA.HHN. ML:1.5 0.00010065 1.22 AML other m 2021-11-09T17:49:40.09
IV.MOMA.HHE. ML:1.5 9.595E-5 0.66 AML other m 2021-11-09T17:49:41.64
IV.GIZZ.HHE. ML:3.6 0.0001455 0.1 AML other m 2021-11-09T17:51:06.93
IV.ZEN8.EHN. ML:2.9 5.405E-5 0.4 AML other m 2021-11-09T17:51:09.55
IV.ZEN8.EHE. ML:2.8 4.08E-5 0.42 AML other m 2021-11-09T17:51:09.86
IV.SBPO.HNE. ML:4.6 0.00404 0.06 AML other m 2021-11-09T17:51:17.05
IV.SBPO.HNN. ML:3.9 0.0009015 0.06 AML other m 2021-11-09T17:51:18.89
IV.GIZZ.HHN. ML:3.9 0.0002445 0.06 AML other m 2021-11-09T17:51:30.75
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