Earthquake with magnitude of ML 1.0 on date 12-10-2021 and time 16:49:40 (UTC) in region 8 km E Monteleone di Spoleto (PG)

A magnitude ML 1.0 earthquake occured in region: 8 km E Monteleone di Spoleto (PG), on

  • 12-10-2021 16:49:40 (UTC)
  • 12-10-2021 18:49:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.649, 13.044 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
Monteleone di Spoleto PG 8 599 599
Cascia PG 8 3217 3816
Cittareale RI 10 482 4298
Poggiodomo PG 11 117 4415
Leonessa RI 12 2435 6850
Posta RI 15 694 7544
Norcia PG 17 4957 12501
Borbona RI 17 617 13118
Accumoli RI 18 667 13785
Polino TR 18 233 14018
Scheggino PG 19 461 14479
Sant'Anatolia di Narco PG 19 564 15043

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Terni (111501 inhabitants)
44 Km NW of L'Aquila (69753 inhabitants)
44 Km SE of Foligno (57155 inhabitants)
54 Km W of Teramo (54892 inhabitants)
74 Km SE of Perugia (166134 inhabitants)
77 Km NE of Guidonia Montecelio (88673 inhabitants)
79 Km N of Tivoli (56533 inhabitants)
81 Km E of Viterbo (67173 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
96 Km NE of Roma (2864731 inhabitants)
98 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 1.0 2021-10-12
16:49:40
42.6492 13.0443 11 2021-10-12
16:57:48
Sala Sismica INGV-Roma 96478791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-12 16:49:40 ± 0.04
Latitude 42.6492 ± 0.0027
Longitude 13.0443 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96478791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 315
Semi-minor axis of confidence ellipse (meter) 270
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 193
Circular confidence region, given by single value of horizontal uncertainty (meter) 310
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 0.45775
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 96478791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-12 16:57:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2021-10-12T16:49:54.68 0.6 undecidable manual S 5 0.3885 50 0.03 47
IV.TERO.HHZ. 2021-10-12T16:49:54.95 0.6 undecidable manual S 93 0.4119 50 -0.4 43
IV.MC2.EHZ. 2021-10-12T16:49:51.62 0.3 undecidable manual S 22 0.2824 50 0.1 71
IV.MF5.EHZ. 2021-10-12T16:49:50.21 0.1 undecidable manual P 42 0.4551 50 0.38 87
IV.ARRO.EHZ. 2021-10-12T16:49:49.54 0.6 undecidable manual S 251 0.2167 50 -0.01 49
IV.SMA1.EHZ. 2021-10-12T16:49:49.50 0.6 undecidable manual S 95 0.2149 50 0 49
IV.CSP1.EHZ. 2021-10-12T16:49:49.87 1.0 positive manual P 15 0.4578 50 0 23
IV.RM33.EHZ. 2021-10-12T16:49:48.56 0.6 undecidable manual S 138 0.188 117 -0.09 49
IV.FDMO.HHZ. 2021-10-12T16:49:48.69 1.0 positive manual P 5 0.3885 50 0 24
IV.TERO.HHZ. 2021-10-12T16:49:48.96 0.6 undecidable manual P 93 0.4119 50 -0.13 46
IV.NRCA.HHZ. 2021-10-12T16:49:48.37 0.6 undecidable manual S 16 0.1916 116 -0.4 45
IV.T1299.HNZ. 2021-10-12T16:49:48.33 0.6 undecidable manual S 95 0.1754 118 0.11 49
IV.MC2.EHZ. 2021-10-12T16:49:46.91 0.6 negative manual P 22 0.2824 50 0.03 48
IV.GAVE.EHZ. 2021-10-12T16:49:46.24 0.6 undecidable manual S 291 0.1187 129 -0.14 49
IV.NRCA.HHZ. 2021-10-12T16:49:45.05 1.0 undecidable manual P 16 0.1916 116 -0.24 24
IV.T1299.HNZ. 2021-10-12T16:49:45.07 0.1 undecidable manual P 95 0.1754 118 0.09 97
IV.RM33.EHZ. 2021-10-12T16:49:45.06 0.3 undecidable manual P 138 0.188 117 -0.16 72
IV.ARRO.EHZ. 2021-10-12T16:49:45.67 0.1 undecidable manual P 251 0.2167 50 -0.08 97
IV.SMA1.EHZ. 2021-10-12T16:49:45.67 0.6 negative manual P 95 0.2149 50 -0.04 49
IV.LNSS.HHZ. 2021-10-12T16:49:44.83 0.6 undecidable manual S 184 0.0459 154 0.23 48
IV.GAVE.EHZ. 2021-10-12T16:49:43.94 0.3 positive manual P 291 0.1187 129 0.03 75
IV.LNSS.HHZ. 2021-10-12T16:49:42.96 0.1 undecidable manual P 184 0.0459 154 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.2 0.000282 0.14 AML other m 2021-10-12T16:49:44.96
IV.LNSS.HHN. ML:1.2 0.000235 1.8 AML other m 2021-10-12T16:49:44.01
IV.GAVE.EHE. ML:1 0.00011234453 0.1536 AML other m 2021-10-12T16:49:47.13
IV.GAVE.EHN. ML:1 0.000102014355 0.1536 AML other m 2021-10-12T16:49:47.43
IV.NRCA.HHN. ML:0.9 6.12E-5 0.12 AML other m 2021-10-12T16:49:48.92
IV.NRCA.HHE. ML:0.9 5.820791E-5 0.0768 AML other m 2021-10-12T16:49:48.94
IV.SMA1.EHN. ML:0.9 4.568414E-5 0.2048 AML other m 2021-10-12T16:49:49.80
IV.SMA1.EHE. ML:1.2 0.000104506165 0.192 AML other m 2021-10-12T16:49:50.01
IV.LNSS.HNE. ML:1.2 0.0002541630525 0.128 AML other m 2021-10-12T16:49:44.96
IV.LNSS.HNN. ML:1 0.00017270725 0.1024 AML other m 2021-10-12T16:49:44.96
IV.GAVE.HNE. ML:1 0.00011634825 0.1664 AML other m 2021-10-12T16:49:47.12
IV.RM33.EHE. ML:0.6 2.883465E-5 0.1408 AML other m 2021-10-12T16:49:50.25
IV.RM33.EHN. ML:0.8 4.0123795E-5 0.1024 AML other m 2021-10-12T16:49:48.81
IV.RM33.HNE. ML:1.3 0.00013071543 0.8064 AML other m 2021-10-12T16:49:48.92
IV.ARRO.EHE. ML:0.5 1.936606E-5 0.1792 AML other m 2021-10-12T16:49:50.84
IV.ARRO.EHN. ML:0.5 2.125512E-5 0.192 AML other m 2021-10-12T16:49:51.39
IV.FDMO.HHE. ML:0.5 9.2700195E-6 0.1536 AML other m 2021-10-12T16:49:55.20
IV.FDMO.HHN. ML:0.5 9.624871E-6 0.2048 AML other m 2021-10-12T16:49:55.27
IV.TERO.HHE. ML:1.4 6.280448E-5 0.4992 AML other m 2021-10-12T16:49:55.03
IV.TERO.HHN. ML:0.5 1.0296508E-5 0.128 AML other m 2021-10-12T16:49:55.72
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