Earthquake with magnitude of ML 1.3 on date 06-10-2021 and time 02:39:19 (UTC) in region 2 km N Labro (RI)

A magnitude ML 1.3 earthquake occured in region: 2 km N Labro (RI), on

  • 06-10-2021 02:39:19 (UTC)
  • 06-10-2021 04:39:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.542, 12.802 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
Labro RI 2 374 374
Morro Reatino RI 3 373 747
Colli sul Velino RI 5 533 1280
Arrone TR 5 2763 4043
Rivodutri RI 5 1253 5296
Polino TR 6 233 5529
Montefranco TR 7 1276 6805
Poggio Bustone RI 8 2055 8860
Ferentillo TR 9 1913 10773
Greccio RI 10 1558 12331
Cantalice RI 12 2755 15086
Stroncone TR 12 4917 20003
Terni TR 13 111501 131504
Leonessa RI 14 2435 133939
Contigliano RI 15 3783 137722
Rieti RI 16 47698 185420
Monteleone di Spoleto PG 17 599 186019
Cottanello RI 18 563 186582
Configni RI 18 633 187215
Scheggino PG 19 461 187676
Montasola RI 20 395 188071

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km E of Terni (111501 inhabitants)
47 Km S of Foligno (57155 inhabitants)
53 Km W of L'Aquila (69753 inhabitants)
59 Km E of Viterbo (67173 inhabitants)
61 Km N of Guidonia Montecelio (88673 inhabitants)
64 Km N of Tivoli (56533 inhabitants)
71 Km SE of Perugia (166134 inhabitants)
75 Km W of Teramo (54892 inhabitants)
77 Km NE of Roma (2864731 inhabitants)
95 Km N of Velletri (53303 inhabitants)
97 Km NE of Civitavecchia (52991 inhabitants)
97 Km NE of Fiumicino (78395 inhabitants)
100 Km N of Pomezia (62966 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 1.3 2021-10-06
02:39:19
42.542 12.8017 10 2021-10-06
04:10:10
Sala Sismica INGV-Roma 96277331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-06 02:39:19 ± 0.15
Latitude 42.5420 ± 0.0090
Longitude 12.8017 ± 0.0073
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 96277331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1029
Semi-minor axis of confidence ellipse (meter) 544
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 178
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
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) 0.58456
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.5
Num. used stations 8
Type of magnitude ML
Reference to an origin 96277331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-06 04:10:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.POFI.HNZ. 2021-10-06T02:39:51.59 3.0 undecidable manual Sn -0.4 0
IV.NRCA.HHZ. 2021-10-06T02:39:33.01 0.6 undecidable manual S 38 0.3714 50 -0.3 46
IV.MML1.EHZ. 2021-10-06T02:39:31.45 0.1 undecidable manual P 12 0.5846 50 0.28 88
IV.FDMO.HHZ. 2021-10-06T02:39:30.49 0.1 undecidable manual P 23 0.5369 50 0.13 92
IV.CESI.HHZ. 2021-10-06T02:39:29.29 0.1 undecidable manual P 9 0.4685 50 0.1 94
IV.LNSS.HHZ. 2021-10-06T02:39:27.60 0.6 undecidable manual S 71 0.1862 116 0.03 50
IV.NRCA.HHZ. 2021-10-06T02:39:27.30 0.1 undecidable manual P 38 0.3714 50 -0.22 93
IV.FIAM.HHZ. 2021-10-06T02:39:27.30 1.0 negative manual P 140 0.3597 50 -0.02 24
IV.CESX.HHZ. 2021-10-06T02:39:26.55 0.6 undecidable manual S 293 0.1718 118 -0.52 45
IV.GAVE.EHZ. 2021-10-06T02:39:26.76 0.6 undecidable manual S 24 0.1646 119 -0.09 50
IV.LNSS.HHZ. 2021-10-06T02:39:24.01 0.1 undecidable manual P 71 0.1862 116 -0.2 97
IV.GAVE.EHZ. 2021-10-06T02:39:23.88 0.1 positive manual P 24 0.1646 119 0.09 100
IV.ARRO.EHZ. 2021-10-06T02:39:23.57 0.6 undecidable manual S 325 0.0459 153 0.07 51
IV.CESX.HHZ. 2021-10-06T02:39:23.88 1.0 undecidable manual P 293 0.1718 118 -0.04 25
IV.ARRO.EHZ. 2021-10-06T02:39:22.10 0.1 undecidable manual P 325 0.0459 153 0.24 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.4 0.0002065 0.78 AML other m 2021-10-06T02:39:27.07
IV.GAVE.EHE. ML:1.3 0.0001595 0.34 AML other m 2021-10-06T02:39:27.08
IV.CESI.HHE. ML:1.2 3.51E-5 1.28 AML other m 2021-10-06T02:39:29.27
IV.NRCA.HHE. ML:1.2 5.675E-5 0.8 AML other m 2021-10-06T02:39:34.07
IV.NRCA.HHN. ML:1.1 3.835E-5 0.42 AML other m 2021-10-06T02:39:34.57
IV.CESI.HHN. ML:1.2 3.395E-5 1.58 AML other m 2021-10-06T02:39:44.90
IV.POFI.HNN. ML:3.4 0.0017125 0.4 AML other m 2021-10-06T02:40:04.23
IV.POFI.HNE. ML:3.4 0.001864 0.4 AML other m 2021-10-06T02:40:04.23
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