Earthquake with magnitude of ML 1.5 on date 03-12-2021 and time 14:45:20 (Italy) in region 2 km E Cerreto di Spoleto (PG)

A magnitude ML 1.5 earthquake occured in region: 2 km E Cerreto di Spoleto (PG), on

  • 03-12-2021 13:45:20 (UTC)
  • 03-12-2021 14:45:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.819, 12.944 at 11 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
Cerreto di Spoleto PG 2 1075 1075
Sellano PG 8 1079 2154
Vallo di Nera PG 9 364 2518
Preci PG 10 724 3242
Poggiodomo PG 12 117 3359
Cascia PG 13 3217 6576
Norcia PG 13 4957 11533
Sant'Anatolia di Narco PG 13 564 12097
Campello sul Clitunno PG 14 2442 14539
Scheggino PG 15 461 15000
Visso MC 17 1107 16107
Trevi PG 17 8469 24576
Monteleone di Spoleto PG 19 599 25175
Castelsantangelo sul Nera MC 19 281 25456
Spoleto PG 19 38218 63674

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SE of Foligno (57155 inhabitants)
38 Km NE of Terni (111501 inhabitants)
55 Km SE of Perugia (166134 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
65 Km W of Teramo (54892 inhabitants)
82 Km NE of Viterbo (67173 inhabitants)
93 Km N of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 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 1.5 2021-12-03
13:45:20
42.819 12.9438 11 2021-12-03
13:52:00
Sala Sismica INGV-Roma 98094731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-03 13:45:20 ± 0.04
Latitude 42.8190 ± 0.0018
Longitude 12.9438 ± 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 98094731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 325
Semi-minor axis of confidence ellipse (meter) 181
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 109
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36782
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 27
Type of magnitude ML
Reference to an origin 98094731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-03 13:52:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CPGN.EHZ. 2021-12-03T13:45:52.88 3.0 undecidable manual S -3.62 0
IV.OSSC.HHZ. 2021-12-03T13:45:46.96 3.0 undecidable manual P 1.64 0
IV.ARVD.HHZ. 2021-12-03T13:45:44.51 3.0 undecidable manual S 0.01 0
IV.EL6.EHZ. 2021-12-03T13:45:39.18 3.0 undecidable manual S -0.19 0
IV.LNSS.HHZ. 2021-12-03T13:45:29.30 0.6 undecidable manual S 162 0.2275 50 -0.22 47
IV.RM33.EHZ. 2021-12-03T13:45:28.18 0.6 negative manual P 147 0.3678 50 0.14 46
IV.CESI.HHZ. 2021-12-03T13:45:28.40 0.6 undecidable manual S 351 0.188 50 0.04 49
IV.FEMA.HNE. 2021-12-03T13:45:27.65 0.6 undecidable manual S 28 0.1628 50 0.04 49
IV.CESX.HHE. 2021-12-03T13:45:27.50 0.6 undecidable manual P 231 0.3363 50 0.01 48
IV.SMA1.EHZ. 2021-12-03T13:45:27.95 0.6 negative manual P 123 0.3435 50 0.33 45
IV.CSP1.EHZ. 2021-12-03T13:45:27.39 0.6 undecidable manual P 35 0.3327 50 -0.04 48
IV.ASSB.HHZ. 2021-12-03T13:45:26.90 1.0 undecidable manual P 317 0.3058 50 -0.07 24
IV.NRCA.HHZ. 2021-12-03T13:45:26.34 0.6 undecidable manual S 83 0.1259 128 -0.12 49
IV.GAVE.EHZ. 2021-12-03T13:45:26.58 0.6 undecidable manual S 196 0.1322 127 -0.07 49
IV.MML1.EHZ. 2021-12-03T13:45:26.80 0.3 undecidable manual P 4 0.295 50 0.01 72
IV.MOMA.HHZ. 2021-12-03T13:45:26.24 3.0 negative manual P -0.21 0
IV.LNSS.HHZ. 2021-12-03T13:45:25.51 0.3 undecidable manual P 162 0.2275 50 -0.12 72
IV.FDMO.HHZ. 2021-12-03T13:45:25.81 0.1 positive manual P 26 0.241 50 -0.06 97
IV.MC2.EHZ. 2021-12-03T13:45:25.30 0.3 undecidable manual P 63 0.2023 50 0.11 72
IV.CESI.HHZ. 2021-12-03T13:45:24.95 0.1 undecidable manual P 351 0.188 50 0 99
IV.FEMA.HNE. 2021-12-03T13:45:24.56 0.1 undecidable manual P 28 0.1628 50 0.04 99
IT.MTCL.HGE. 2021-12-03T13:45:24.69 0.1 undecidable manual P 13 0.1799 50 -0.12 97
IV.GAVE.EHZ. 2021-12-03T13:45:24.08 0.1 positive manual P 196 0.1322 127 0.11 98
IV.NRCA.HHZ. 2021-12-03T13:45:23.86 0.1 negative manual P 83 0.1259 128 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:2.2 0.001428136 0.16 AML other m 2021-12-03T13:45:26.38
IV.NRCA.HHE. ML:1.9 0.0007854167 0.096 AML other m 2021-12-03T13:45:26.81
IV.GAVE.EHE. ML:2.1 0.00121884665 0.1152 AML other m 2021-12-03T13:45:26.90
IV.GAVE.EHN. ML:1.7 0.00048307745 0.0832 AML other m 2021-12-03T13:45:27.11
IV.CESI.HHN. ML:1.5 0.0001983923 0.1408 AML other m 2021-12-03T13:45:28.65
IV.LNSS.HHE. ML:1.6 0.0002223891 0.0768 AML other m 2021-12-03T13:45:29.84
IV.CESI.HHE. ML:1.3 0.0001425 0.74 AML other m 2021-12-03T13:45:29.57
IV.LNSS.HHN. ML:1.6 0.00020926165 0.1792 AML other m 2021-12-03T13:45:29.66
IV.FDMO.HHE. ML:1.3 0.0001173278 0.1152 AML other m 2021-12-03T13:45:30.32
IV.FDMO.HHN. ML:1.4 0.000136 0.34 AML other m 2021-12-03T13:45:30.61
IV.ASSB.HHE. ML:1.5 0.0001246581 0.16 AML other m 2021-12-03T13:45:32.37
IV.MML1.HNE. ML:1.8 0.0002635 0.2 AML other m 2021-12-03T13:45:32.10
IV.MML1.EHE. ML:1.8 0.000249 0.2 AML other m 2021-12-03T13:45:32.11
IV.ASSB.HHN. ML:1.7 0.0002124708 0.1792 AML other m 2021-12-03T13:45:32.16
IV.MML1.HNN. ML:1.6 0.000183456285 0.2624 AML other m 2021-12-03T13:45:32.20
IV.MML1.EHN. ML:1.6 0.000185 0.22 AML other m 2021-12-03T13:45:32.20
IV.NRCA.HNE. ML:1.9 0.00074934075 0.0896 AML other m 2021-12-03T13:45:26.81
IV.NRCA.HNN. ML:2.1 0.001382902 0.1472 AML other m 2021-12-03T13:45:26.39
IV.GAVE.HNE. ML:2.1 0.00125995465 0.1472 AML other m 2021-12-03T13:45:26.90
IV.GAVE.HNN. ML:1.2 0.00014794749 0.0896 AML other m 2021-12-03T13:45:27.10
IV.CESI.HNE. ML:1.3 0.00013613675 0.1024 AML other m 2021-12-03T13:45:29.03
IV.CESI.HNN. ML:1.7 0.0003427797 0.3776 AML other m 2021-12-03T13:45:29.92
IV.MC2.EHE. ML:1.4 0.00017933357 0.1984 AML other m 2021-12-03T13:45:31.05
IV.MC2.EHN. ML:1.7 0.0003307213 0.2368 AML other m 2021-12-03T13:45:30.49
IV.LNSS.HNE. ML:1.5 0.00019456375 0.0832 AML other m 2021-12-03T13:45:29.83
IV.LNSS.HNN. ML:1.5 0.00018902405 0.1792 AML other m 2021-12-03T13:45:29.66
IV.MOMA.HHE. ML:1.1 6.4099335E-5 0.1344 AML other m 2021-12-03T13:45:31.94
IV.MOMA.HHN. ML:1.1 6.2778675E-5 0.2176 AML other m 2021-12-03T13:45:31.35
IV.MOMA.HNN. ML:1.6 0.0001838853 0.672 AML other m 2021-12-03T13:45:31.40
IV.SMA1.EHE. ML:1.4 8.9303955E-5 0.1792 AML other m 2021-12-03T13:45:35.34
IV.SMA1.EHN. ML:1.2 6.3172945E-5 0.6592 AML other m 2021-12-03T13:45:33.47
IV.RM33.HNE. ML:1.8 0.000220637335 0.8256 AML other m 2021-12-03T13:45:45.83
IV.RM33.HNN. ML:1.4 8.186495E-5 0.3584 AML other m 2021-12-03T13:45:43.79
IV.RM33.EHE. ML:1.4 8.357419E-5 0.3584 AML other m 2021-12-03T13:45:36.03
IV.RM33.EHN. ML:1.2 5.4576945E-5 0.2432 AML other m 2021-12-03T13:45:34.38
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