Earthquake with magnitude of ML 1.3 on date 27-11-2020 and time 10:27:13 (Italy) in region 3 km NW Cascia (PG)

A magnitude ML 1.3 earthquake occured in region: 3 km NW Cascia (PG), on

  • 27-11-2020 09:27:13 (UTC)
  • 27-11-2020 10:27:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.74, 12.99 at 9 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 3 3217 3217
Poggiodomo PG 6 117 3334
Norcia PG 10 4957 8291
Monteleone di Spoleto PG 10 599 8890
Cerreto di Spoleto PG 11 1075 9965
Vallo di Nera PG 11 364 10329
Sant'Anatolia di Narco PG 13 564 10893
Scheggino PG 14 461 11354
Preci PG 16 724 12078
Sellano PG 17 1079 13157
Cittareale RI 19 482 13639
Campello sul Clitunno PG 20 2442 16081
Leonessa RI 20 2435 18516

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SE of Foligno (57155 inhabitants)
35 Km NE of Terni (111501 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
59 Km W of Teramo (54892 inhabitants)
64 Km SE of Perugia (166134 inhabitants)
81 Km E of Viterbo (67173 inhabitants)
85 Km N of Guidonia Montecelio (88673 inhabitants)
88 Km N of Tivoli (56533 inhabitants)
98 Km W of Montesilvano (53738 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 1.3 2020-11-27
09:27:13
42.74 12.99 9 2020-11-27
09:37:38
Sala Sismica INGV-Roma 85047451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-27 09:27:13 ± 0.19
Latitude 42.74 ± 0.01
Longitude 12.99 ± 0.02
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85047451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1397
Semi-minor axis of confidence ellipse (meter) 763
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 309
Circular confidence region, given by single value of horizontal uncertainty (meter) 1400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.46405
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 9
Type of magnitude ML
Reference to an origin 85047451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-27 09:37:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-11-27T09:27:30.65 0.6 undecidable manual S 104 0.4641 50 0.35 45
IV.CESI.HHZ. 2020-11-27T09:27:24.28 0.3 undecidable manual S 346 0.2725 107 -0.3 70
IV.TERO.HHZ. 2020-11-27T09:27:23.03 0.6 undecidable manual P 104 0.4641 50 -0.23 46
IV.ARRO.EHZ. 2020-11-27T09:27:22.65 0.3 undecidable manual S 226 0.232 109 -0.47 68
IV.CSP1.EHZ. 2020-11-27T09:27:21.45 3.0 undecidable manual P -0.23 0
IV.FDMO.HHZ. 2020-11-27T09:27:20.27 0.3 positive manual P 13 0.304 50 -0.25 71
IV.CESI.HHZ. 2020-11-27T09:27:20.63 0.1 undecidable manual P 346 0.2725 107 0.67 84
IV.MMO1.EHZ. 2020-11-27T09:27:20.07 0.1 undecidable manual P 57 0.2914 50 -0.25 95
IV.NRCA.HHZ. 2020-11-27T09:27:19.03 0.1 undecidable manual S 44 0.1286 122 -0.49 93
IV.ARRO.EHZ. 2020-11-27T09:27:19.43 0.3 undecidable manual P 226 0.232 109 0.32 71
IV.MC2.EHZ. 2020-11-27T09:27:18.89 0.1 undecidable manual P 40 0.223 110 -0.04 100
IV.NRCA.HHZ. 2020-11-27T09:27:17.76 0.1 undecidable manual P 44 0.1286 122 0.73 84
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0 0.0008845 0.08 AML other m 2020-11-27T09:27:19.13
IV.NRCA.HHE. ML:0 0.000417 0.3 AML other m 2020-11-27T09:27:19.35
IV.FDMO.HHN. ML:0 2.62E-5 1.18 AML other m 2020-11-27T09:27:23.69
IV.FDMO.HHE. ML:0 3.625E-5 1.04 AML other m 2020-11-27T09:27:24.16
IV.CESI.HHN. ML:0 4.965E-5 0.48 AML other m 2020-11-27T09:27:24.74
IV.CESI.HHE. ML:0 3.205E-5 0.62 AML other m 2020-11-27T09:27:24.58
IV.NRCA.HNE. ML:1.6 0.00038005525 0.0704 AML other m 2020-11-27T09:27:19.34
IV.NRCA.HNN. ML:1.9 0.00082142625 0.0896 AML other m 2020-11-27T09:27:19.13
IV.CSP1.EHN. ML:1.3 7.2154565E-5 0.2368 AML other m 2020-11-27T09:27:26.84
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