Earthquake with magnitude of ML 2.0 on date 05-10-2020 and time 12:20:10 (UTC) in region 1 km E Spoleto (PG)

A magnitude ML 2.0 earthquake occured in region: 1 km E Spoleto (PG), on

  • 05-10-2020 12:20:10 (UTC)
  • 05-10-2020 14:20:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.74, 12.75 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Spoleto PG 1 38218 38218
Sant'Anatolia di Narco PG 7 564 38782
Scheggino PG 7 461 39243
Campello sul Clitunno PG 9 2442 41685
Vallo di Nera PG 10 364 42049
Castel Ritaldi PG 11 3278 45327
Ferentillo TR 14 1913 47240
Trevi PG 15 8469 55709
Poggiodomo PG 15 117 55826
Montefranco TR 16 1276 57102
Cerreto di Spoleto PG 16 1075 58177
Arrone TR 17 2763 60940
Acquasparta TR 18 4778 65718
Giano dell'Umbria PG 18 3846 69564
Polino TR 19 233 69797
Montefalco PG 19 5679 75476
Massa Martana PG 19 3770 79246
Monteleone di Spoleto PG 19 599 79845

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Terni (111501 inhabitants)
24 Km S of Foligno (57155 inhabitants)
50 Km SE of Perugia (166134 inhabitants)
64 Km NE of Viterbo (67173 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
79 Km W of Teramo (54892 inhabitants)
82 Km N of Guidonia Montecelio (88673 inhabitants)
86 Km N of Tivoli (56533 inhabitants)
97 Km N of Roma (2864731 inhabitants)
Recent and historical seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
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 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
Bulletin
Rev1000
ML 2.0 2020-10-05
12:20:10
42.74 12.75 8 2021-02-26
14:56:00
Bollettino Sismico Italiano INGV 83958921
Reviewed
Rev100
ML 2.1 2020-10-05
12:20:10
42.74 12.75 8 2020-10-05
12:28:10
Sala Sismica INGV-Roma 83524401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-05 12:20:10 ± 0.04
Latitude 42.74 ± 0.00
Longitude 12.75 ± 0.00
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83958921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 266
Semi-minor axis of confidence ellipse (meter) 237
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.11511
Epicentral distance of station farthest from the epicenter (degree) 0.47394
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 38
Type of magnitude ML
Reference to an origin 83958921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-11 17:24:40

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 83524401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-05 12:28:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTRA.EHZ. 2020-10-05T12:20:27.43 0.3 undecidable manual S 88 0.4739 50 0.28 66
IV.MMO1.EHZ. 2020-10-05T12:20:26.44 0.3 undecidable manual S 69 0.4506 50 -0.03 70
IV.SMA1.EHZ. 2020-10-05T12:20:26.55 0.3 undecidable manual S 104 0.4434 50 0.32 66
IV.RM33.EHZ. 2020-10-05T12:20:25.28 0.3 undecidable manual S 124 0.4119 50 -0.03 71
IV.MML1.HNE. 2020-10-05T12:20:25.60 0.6 undecidable manual S 23 0.4065 50 0.45 43
IV.MC2.EHZ. 2020-10-05T12:20:24.24 0.3 undecidable manual S 62 0.3633 50 0.35 67
IV.FDMO.HHZ. 2020-10-05T12:20:24.62 0.3 undecidable manual S 40 0.3849 50 0.1 70
IV.ASSB.HHZ. 2020-10-05T12:20:22.33 0.3 undecidable manual S 347 0.3094 50 0.04 72
IV.CESI.HHZ. 2020-10-05T12:20:21.43 0.3 undecidable manual S 23 0.2869 105 -0.05 72
IV.NRCA.HHZ. 2020-10-05T12:20:21.41 0.3 undecidable manual S 71 0.2824 105 0.13 71
IV.LNSS.HHZ. 2020-10-05T12:20:20.08 0.3 undecidable manual S 123 0.2527 106 -0.12 72
IV.ATCC.EHE. 2020-10-05T12:20:19.84 0.6 undecidable manual P 350 0.4524 50 0.3 44
IV.SMA1.EHZ. 2020-10-05T12:20:19.35 0.1 undecidable manual P 104 0.4434 50 -0.04 94
IV.MTRA.EHZ. 2020-10-05T12:20:19.61 0.1 negative manual P 88 0.4739 50 -0.31 88
IV.MMO1.EHZ. 2020-10-05T12:20:19.29 0.1 negative manual P 69 0.4506 50 -0.24 90
IV.FDMO.HHZ. 2020-10-05T12:20:18.36 0.3 undecidable manual P 40 0.3849 50 -0.04 71
IV.RM33.EHZ. 2020-10-05T12:20:18.54 0.1 undecidable manual P 124 0.4119 50 -0.32 89
IV.MML1.HNE. 2020-10-05T12:20:18.79 0.3 undecidable manual P 23 0.4065 50 0.03 71
IV.MC2.EHZ. 2020-10-05T12:20:17.96 0.1 undecidable manual P 62 0.3633 50 -0.07 95
IV.ARRO.EHZ. 2020-10-05T12:20:17.28 0.3 undecidable manual S 176 0.161 115 0.39 69
IV.CESX.HHZ. 2020-10-05T12:20:17.37 0.3 undecidable manual S 223 0.179 113 -0.13 73
IT.GNU.HGZ. 2020-10-05T12:20:16.81 0.6 undecidable manual S 296 0.1475 117 0.41 46
IV.NRCA.HHZ. 2020-10-05T12:20:16.29 0.1 negative manual P 71 0.2824 105 -0.24 93
IV.CESI.HHZ. 2020-10-05T12:20:16.52 0.1 positive manual P 23 0.2869 105 -0.12 95
IV.ASSB.HHZ. 2020-10-05T12:20:16.80 0.1 positive manual P 347 0.3094 50 -0.31 91
IV.MOMA.HHZ. 2020-10-05T12:20:16.36 0.3 undecidable manual S 296 0.1475 117 -0.04 74
IV.LNSS.HHZ. 2020-10-05T12:20:15.68 0.1 undecidable manual P 123 0.2527 106 -0.23 94
IV.GAVE.EHZ. 2020-10-05T12:20:15.49 0.3 undecidable manual S 115 0.1151 123 0.15 73
IV.ARRO.EHZ. 2020-10-05T12:20:14.11 0.1 positive manual P 176 0.161 115 0.11 97
IV.CESX.HHZ. 2020-10-05T12:20:14.34 0.3 undecidable manual P 223 0.179 113 -0.01 74
IV.GAVE.EHZ. 2020-10-05T12:20:13.22 0.1 negative manual P 115 0.1151 123 0.12 98
IV.MOMA.HHZ. 2020-10-05T12:20:13.71 0.1 negative manual P 296 0.1475 117 0 100
IT.GNU.HGZ. 2020-10-05T12:20:13.83 0.6 undecidable manual P 296 0.1475 117 0.12 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:0 0.0007505 0.22 AML other m 2020-10-05T12:20:20.11
IV.GAVE.EHN. ML:2.3 0.002338001 0.2368 AML other m 2020-10-05T12:20:17.33
IV.GAVE.EHE. ML:2.4 0.0028432875 0.1792 AML other m 2020-10-05T12:20:16.53
IV.GAVE.HNN. ML:1.8 0.000674208 0.2496 AML other m 2020-10-05T12:20:17.32
IV.GAVE.HNE. ML:2.4 0.003001956 0.1984 AML other m 2020-10-05T12:20:16.52
IV.MOMA.HNE. ML:2.1 0.001345708 0.2304 AML other m 2020-10-05T12:20:17.55
IV.MOMA.HHE. ML:2.2 0.0014120215 0.2368 AML other m 2020-10-05T12:20:17.55
IV.MOMA.HHN. ML:2.1 0.0013118195 0.2048 AML other m 2020-10-05T12:20:19.74
IV.MOMA.HNN. ML:2.1 0.0012470255 0.2048 AML other m 2020-10-05T12:20:19.84
IV.ARRO.EHE. ML:2 0.0009569787 0.2048 AML other m 2020-10-05T12:20:20.10
IV.CESX.HHN. ML:2.2 0.0012637055 0.3008 AML other m 2020-10-05T12:20:19.87
IV.CESX.HHE. ML:2.3 0.001665668 0.6208 AML other m 2020-10-05T12:20:19.34
IV.LNSS.HNE. ML:2.3 0.0011371654 0.3072 AML other m 2020-10-05T12:20:22.73
IV.LNSS.HHE. ML:2.3 0.00114796925 0.32 AML other m 2020-10-05T12:20:22.72
IV.LNSS.HHN. ML:2.3 0.001074107 0.3392 AML other m 2020-10-05T12:20:22.68
IV.LNSS.HNN. ML:2.2 0.0009794924 0.3456 AML other m 2020-10-05T12:20:22.68
IV.NRCA.HNE. ML:2 0.0005314471 0.16 AML other m 2020-10-05T12:20:24.14
IV.NRCA.HHE. ML:2.1 0.00054832935 0.16 AML other m 2020-10-05T12:20:24.13
IV.NRCA.HNN. ML:1.8 0.0003320474 0.1152 AML other m 2020-10-05T12:20:23.49
IV.NRCA.HHN. ML:1.9 0.0003578114 0.1216 AML other m 2020-10-05T12:20:23.48
IV.CESI.HHE. ML:1.8 0.0003096341 0.2368 AML other m 2020-10-05T12:20:21.84
IV.CESI.HNN. ML:2.2 0.0006660868 0.256 AML other m 2020-10-05T12:20:21.70
IV.CESI.HHN. ML:2.2 0.0006720373 0.2432 AML other m 2020-10-05T12:20:21.70
IV.CESI.HNE. ML:1.8 0.000295630239 0.2048 AML other m 2020-10-05T12:20:22.52
IV.ASSB.HHE. ML:2 0.00045073315 0.384 AML other m 2020-10-05T12:20:22.87
IV.ASSB.HHN. ML:1.9 0.00034980415 0.3392 AML other m 2020-10-05T12:20:22.61
IV.FDMO.HHE. ML:2 0.00032281975 0.2624 AML other m 2020-10-05T12:20:26.20
IV.FDMO.HHN. ML:1.8 0.0001798542 0.32 AML other m 2020-10-05T12:20:25.97
IV.RM33.HNE. ML:2 0.00026886015 0.3392 AML other m 2020-10-05T12:20:29.06
IV.RM33.EHE. ML:1.8 0.00020737225 0.2432 AML other m 2020-10-05T12:20:28.61
IV.RM33.EHN. ML:1.9 0.00024048825 0.2816 AML other m 2020-10-05T12:20:27.65
IV.RM33.HNN. ML:1.9 0.0002538086 0.5056 AML other m 2020-10-05T12:20:27.08
IV.SMA1.EHE. ML:2.1 0.00030808235 0.32 AML other m 2020-10-05T12:20:29.81
IV.SMA1.EHN. ML:2.1 0.0003502065 0.2944 AML other m 2020-10-05T12:20:30.31
IV.MTRA.HNN. ML:1.8 0.0001752088 0.512 AML other m 2020-10-05T12:20:30.72
IV.MTRA.EHN. ML:1.7 0.0001299459 0.1984 AML other m 2020-10-05T12:20:28.44
IV.MTRA.HNE. ML:1.8 0.00014830819 0.256 AML other m 2020-10-05T12:20:32.55
IV.MTRA.EHE. ML:1.7 0.00013110393 0.4544 AML other m 2020-10-05T12:20:31.44
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download