Earthquake with magnitude of ML 1.7 on date 01-12-2020 and time 18:52:35 (Italy) in region 2 km S Cascia (PG)

A magnitude ML 1.7 earthquake occured in region: 2 km S Cascia (PG), on

  • 01-12-2020 17:52:35 (UTC)
  • 01-12-2020 18:52:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7, 13.01 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
Cascia PG 2 3217 3217
Poggiodomo PG 6 117 3334
Monteleone di Spoleto PG 8 599 3933
Norcia PG 12 4957 8890
Vallo di Nera PG 14 364 9254
Sant'Anatolia di Narco PG 15 564 9818
Scheggino PG 15 461 10279
Cerreto di Spoleto PG 15 1075 11354
Cittareale RI 16 482 11836
Leonessa RI 16 2435 14271
Polino TR 19 233 14504
Preci PG 20 724 15228
Accumoli RI 20 667 15895

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Terni (111501 inhabitants)
37 Km SE of Foligno (57155 inhabitants)
51 Km NW of L'Aquila (69753 inhabitants)
57 Km W of Teramo (54892 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
81 Km E of Viterbo (67173 inhabitants)
82 Km N of Guidonia Montecelio (88673 inhabitants)
84 Km N of Tivoli (56533 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
100 Km NE of Roma (2864731 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 1.7 2020-12-01
17:52:35
42.7 13.01 10 2020-12-01
18:01:13
Sala Sismica INGV-Roma 85132531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-01 17:52:35 ± 0.04
Latitude 42.70 ± 0.00
Longitude 13.01 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85132531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 236
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 113
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41279
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 39
Type of magnitude ML
Reference to an origin 85132531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-01 18:01:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2020-12-01T17:53:21.20 3.0 undecidable manual S 0.15 0
IV.CESI.HHZ. 2020-12-01T17:52:47.37 0.6 undecidable manual S 346 0.3094 50 -0.08 48
IV.MC2.EHZ. 2020-12-01T17:52:45.60 0.6 undecidable manual S 32 0.2446 109 0.11 49
IV.CSP1.EHZ. 2020-12-01T17:52:44.15 0.3 undecidable manual P 20 0.4128 50 -0.01 72
IV.TERO.HHZ. 2020-12-01T17:52:44.26 3.0 undecidable manual P -0.28 0
IV.GUMA.HHZ. 2020-12-01T17:52:44.85 3.0 negative manual P 0.48 0
IV.ASSB.HHZ. 2020-12-01T17:52:44.18 3.0 positive manual P -0.19 0
IV.MF5.EHZ. 2020-12-01T17:52:44.78 3.0 undecidable manual P 0.35 0
IT.GNU.HGZ. 2020-12-01T17:52:42.99 0.6 undecidable manual P 287 0.3372 50 0.12 48
IV.CAMP.HHZ. 2020-12-01T17:52:42.61 3.0 negative manual P 0.04 0
IV.MMO1.EHZ. 2020-12-01T17:52:42.13 3.0 negative manual P 0.11 0
IV.MOMA.HHZ. 2020-12-01T17:52:42.77 3.0 negative manual P -0.01 0
IV.FDMO.HHZ. 2020-12-01T17:52:42.89 0.3 undecidable manual P 10 0.3363 50 0.04 73
IV.CESX.HHZ. 2020-12-01T17:52:42.69 3.0 undecidable manual P 0.18 0
IV.NRCA.HHZ. 2020-12-01T17:52:42.08 0.6 undecidable manual S 31 0.1502 120 -0.08 49
IV.CESI.HHZ. 2020-12-01T17:52:42.34 0.3 positive manual P 346 0.3094 50 -0.06 73
IV.MTRA.EHZ. 2020-12-01T17:52:41.86 3.0 positive manual P 0.15 0
IV.SMA1.EHZ. 2020-12-01T17:52:41.25 3.0 positive manual P 0.26 0
IT.MTCL.HGZ. 2020-12-01T17:52:41.95 0.3 undecidable manual P 359 0.2887 50 -0.09 73
IV.MC2.EHZ. 2020-12-01T17:52:41.30 0.6 positive manual P 32 0.2446 109 0.04 49
IV.ARRO.EHZ. 2020-12-01T17:52:40.55 3.0 positive manual P -0.01 0
IV.LNSS.HHZ. 2020-12-01T17:52:40.55 0.6 undecidable manual S 167 0.1043 130 -0.15 49
IV.T1299.HNZ. 2020-12-01T17:52:40.58 0.3 undecidable manual P 109 0.2122 112 -0.01 75
IV.NRCA.HHZ. 2020-12-01T17:52:39.43 0.1 negative manual P 31 0.1502 120 0.09 100
IV.LNSS.HHZ. 2020-12-01T17:52:38.59 0.3 undecidable manual P 167 0.1043 130 0.09 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.9 0.0009857522 0.1408 AML other m 2020-12-01T17:52:41.27
IV.LNSS.HHN. ML:2 0.001328258 0.2816 AML other m 2020-12-01T17:52:41.11
IV.LNSS.HNE. ML:1.9 0.0009534626 0.1792 AML other m 2020-12-01T17:52:41.00
IV.LNSS.HNN. ML:2 0.001231393 0.2688 AML other m 2020-12-01T17:52:41.11
IV.NRCA.HHE. ML:1.8 0.00063087795 0.1408 AML other m 2020-12-01T17:52:42.66
IV.NRCA.HHN. ML:1.8 0.0005729063 0.1408 AML other m 2020-12-01T17:52:42.27
IV.NRCA.HNE. ML:1.8 0.0006176782 0.1408 AML other m 2020-12-01T17:52:42.73
IV.NRCA.HNN. ML:1.8 0.000493866 0.1408 AML other m 2020-12-01T17:52:42.34
IV.ARRO.EHE. ML:1.4 0.00016621115 0.1792 AML other m 2020-12-01T17:52:47.19
IV.ARRO.EHN. ML:1.5 0.00019401705 0.1408 AML other m 2020-12-01T17:52:45.59
IV.SMA1.EHE. ML:1.9 0.00044202875 0.1792 AML other m 2020-12-01T17:52:46.37
IV.SMA1.EHN. ML:2 0.0004761066 0.128 AML other m 2020-12-01T17:52:46.16
IV.MTRA.HNE. ML:1.7 0.00022208885 0.1792 AML other m 2020-12-01T17:52:47.68
IV.MTRA.HNN. ML:1.7 0.00023836345 0.1664 AML other m 2020-12-01T17:52:48.10
IV.MTRA.EHE. ML:1.7 0.0002240585 0.1664 AML other m 2020-12-01T17:52:47.68
IV.MTRA.EHN. ML:1.7 0.0002320587 0.1792 AML other m 2020-12-01T17:52:48.01
IV.CESI.HNE. ML:1.6 0.0001571241 0.5632 AML other m 2020-12-01T17:52:50.53
IV.CESI.HNN. ML:1.8 0.00027249225 0.2432 AML other m 2020-12-01T17:52:51.93
IV.CESI.HHE. ML:1.3 7.730287E-5 0.2048 AML other m 2020-12-01T17:52:50.69
IV.CESI.HHN. ML:1.5 0.00013272263 0.2176 AML other m 2020-12-01T17:52:51.93
IV.CAMP.HHE. ML:1.2 5.838701E-5 0.576 AML other m 2020-12-01T17:52:48.60
IV.CAMP.HHN. ML:1.3 6.9331665E-5 0.4224 AML other m 2020-12-01T17:52:48.14
IV.CESX.HHE. ML:1.4 9.919969E-5 0.1408 AML other m 2020-12-01T17:52:49.30
IV.CESX.HHN. ML:1.5 0.00011459985 0.1664 AML other m 2020-12-01T17:52:48.42
IV.MOMA.HNE. ML:1.9 0.0003006332 0.192 AML other m 2020-12-01T17:52:49.57
IV.MOMA.HNN. ML:1.9 0.00026977945 0.32 AML other m 2020-12-01T17:52:49.62
IV.MOMA.HHE. ML:1.9 0.0002841791 0.2432 AML other m 2020-12-01T17:52:49.56
IV.MOMA.HHN. ML:1.8 0.00026532055 0.32 AML other m 2020-12-01T17:52:49.62
IV.FDMO.HHE. ML:1.4 9.7413525E-5 0.2176 AML other m 2020-12-01T17:52:49.40
IV.FDMO.HHN. ML:1.6 0.00013899965 0.2432 AML other m 2020-12-01T17:52:48.89
IV.CSP1.EHE. ML:1.7 0.000162032215 0.2432 AML other m 2020-12-01T17:52:51.48
IV.CSP1.EHN. ML:1.8 0.0001813928 0.256 AML other m 2020-12-01T17:52:52.44
IV.ASSB.HHE. ML:1.6 0.000111580035 0.0768 AML other m 2020-12-01T17:52:51.37
IV.ASSB.HHN. ML:1.7 0.00013041335 0.2048 AML other m 2020-12-01T17:52:52.60
IV.TERO.HHE. ML:1.4 6.6595865E-5 0.192 AML other m 2020-12-01T17:52:51.24
IV.TERO.HHN. ML:1.4 6.3288825E-5 0.1792 AML other m 2020-12-01T17:52:53.70
IV.MF5.EHE. ML:1.8 0.000179582925 0.4608 AML other m 2020-12-01T17:52:52.99
IV.MF5.EHN. ML:1.6 0.000116741525 0.5376 AML other m 2020-12-01T17:52:53.00
IV.GUMA.HHE. ML:1.8 0.00017923845 0.32 AML other m 2020-12-01T17:52:55.67
IV.GUMA.HHN. ML:1.8 0.0001931587 0.3968 AML other m 2020-12-01T17:52:55.30
IV.GUMA.HNE. ML:2 0.00025747235 0.512 AML other m 2020-12-01T17:52:56.41
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download