Earthquake with magnitude of ML 2.2 on date 28-10-2020 and time 00:13:46 (UTC) in region 6 km E San Gemini (TR)

A magnitude ML 2.2 earthquake occured in region: 6 km E San Gemini (TR), on

  • 28-10-2020 00:13:46 (UTC)
  • 28-10-2020 01:13:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.63, 12.61 at 5 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
San Gemini TR 6 5018 5018
Terni TR 8 111501 116519
Acquasparta TR 9 4778 121297
Montecastrilli TR 11 5022 126319
Montefranco TR 13 1276 127595
Arrone TR 14 2763 130358
Narni TR 14 19785 150143
Ferentillo TR 15 1913 152056
Stroncone TR 15 4917 156973
Avigliano Umbro TR 15 2558 159531
Spoleto PG 16 38218 197749
Massa Martana PG 18 3770 201519
Amelia TR 18 11897 213416
Labro RI 19 374 213790
Polino TR 20 233 214023
Colli sul Velino RI 20 533 214556

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km NW of Terni (111501 inhabitants)
37 Km S of Foligno (57155 inhabitants)
48 Km NE of Viterbo (67173 inhabitants)
56 Km SE of Perugia (166134 inhabitants)
70 Km N of Guidonia Montecelio (88673 inhabitants)
71 Km W of L'Aquila (69753 inhabitants)
75 Km N of Tivoli (56533 inhabitants)
82 Km N of Roma (2864731 inhabitants)
89 Km W of Teramo (54892 inhabitants)
90 Km NE of Civitavecchia (52991 inhabitants)
100 Km NE of Fiumicino (78395 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 2.2 2020-10-28
00:13:46
42.63 12.61 5 2021-02-26
14:56:01
Bollettino Sismico Italiano INGV 84235571
Reviewed
Rev100
ML 2.2 2020-10-28
00:13:46
42.63 12.6 7 2020-10-28
00:21:14
Sala Sismica INGV-Roma 84191771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-28 00:13:46 ± 0.08
Latitude 42.63 ± 0.00
Longitude 12.61 ± 0.01
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84235571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 397
Semi-minor axis of confidence ellipse (meter) 395
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 114
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.02788
Epicentral distance of station farthest from the epicenter (degree) 1.0549
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 40
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 84191771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-28 00:21:14

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 84235571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-11 10:35:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SAP2.EHZ. 2020-10-28T00:14:12.47 3.0 undecidable manual S 51 0.7419 50 0.55 0
IV.ATFO.HHZ. 2020-10-28T00:14:12.32 0.3 undecidable manual S 358 0.7383 50 0.51 60
IV.MF5.EHZ. 2020-10-28T00:14:11.31 0.3 undecidable manual S 60 0.7168 50 0.12 66
IV.GUMA.HHZ. 2020-10-28T00:14:10.32 0.3 undecidable manual S 50 0.6844 50 0.1 66
IV.SNTG.HHZ. 2020-10-28T00:14:10.50 0.3 undecidable manual S 21 0.67 50 0.7 56
IV.CSP1.EHZ. 2020-10-28T00:14:09.11 0.3 undecidable manual S 43 0.634 50 0.38 63
IV.MTCE.HHZ. 2020-10-28T00:14:08.63 0.3 undecidable manual S 171 0.6133 50 0.51 61
IV.MMO1.EHZ. 2020-10-28T00:14:07.84 0.3 undecidable manual S 62 0.5891 50 0.43 63
IV.PARC.HHZ. 2020-10-28T00:14:06.98 0.1 undecidable manual P 345 1.0549 50 0.57 73
IV.ATCC.EHZ. 2020-10-28T00:14:06.69 0.3 undecidable manual S 2 0.5567 50 0.26 66
IV.SMA1.EHZ. 2020-10-28T00:14:05.65 0.3 undecidable manual S 90 0.5306 50 -0.03 69
IV.MC2.EHZ. 2020-10-28T00:14:05.65 1.0 undecidable manual S 56 0.5081 50 0.65 20
IV.MGAB.HHZ. 2020-10-28T00:14:04.23 0.3 undecidable manual S 308 0.4641 50 0.52 63
IV.T1299.EHN. 2020-10-28T00:14:04.83 0.3 undecidable manual S 89 0.4919 50 0.31 66
IV.ARVD.HHZ. 2020-10-28T00:14:03.56 0.1 undecidable manual P 15 0.9011 50 -0.21 82
IV.SAMA.EHZ. 2020-10-28T00:14:03.46 0.1 undecidable manual P 181 0.8481 50 0.6 75
IV.MNTT.EHZ. 2020-10-28T00:14:03.23 0.3 undecidable manual P 59 0.84 50 0.5 59
IV.ATPI.EHZ. 2020-10-28T00:14:03.09 0.3 undecidable manual P 349 0.8355 50 0.44 60
TV.SF01.EHZ. 2020-10-28T00:14:02.68 0.1 undecidable manual P 284 0.7923 50 0.77 71
IV.CESI.HHZ. 2020-10-28T00:14:02.29 0.3 undecidable manual S 30 0.4326 50 -0.47 65
IV.ASSB.HHZ. 2020-10-28T00:14:02.21 0.3 undecidable manual S 5 0.4146 50 -0.03 71
IV.RCAV.EHZ. 2020-10-28T00:14:02.22 0.3 undecidable manual P 162 0.8184 50 -0.14 64
IV.FAGN.HHZ. 2020-10-28T00:14:02.65 0.3 undecidable manual P 117 0.8022 50 0.57 58
IV.EL6.EHZ. 2020-10-28T00:14:01.36 0.1 undecidable manual P 27 0.786 50 -0.44 81
IV.SRES.HHE. 2020-10-28T00:14:01.66 0.6 undecidable manual S 191 0.3993 97 0.01 48
IV.SAP2.EHZ. 2020-10-28T00:14:01.52 0.1 undecidable manual P 51 0.7419 50 0.48 81
IV.ATFO.HHZ. 2020-10-28T00:14:01.55 0.3 undecidable manual P 358 0.7383 50 0.57 59
IV.ATMI.HHZ. 2020-10-28T00:14:01.48 0.3 undecidable manual P 340 0.7491 50 0.32 63
IV.MF5.EHZ. 2020-10-28T00:14:00.87 0.3 undecidable manual P 60 0.7168 50 0.25 64
IT.FOPC.HGE. 2020-10-28T00:13:59.88 0.3 undecidable manual S 11 0.3471 98 0.22 69
IV.MURB.HHZ. 2020-10-28T00:13:59.30 0.3 undecidable manual P 354 0.6367 50 0.05 68
IV.GUMA.HHZ. 2020-10-28T00:13:59.89 0.1 undecidable manual P 50 0.6844 50 -0.17 87
IV.LNSS.HHZ. 2020-10-28T00:13:59.08 0.3 undecidable manual S 95 0.3148 98 0.63 62
IV.SNTG.HHZ. 2020-10-28T00:13:59.37 0.1 undecidable manual P 21 0.67 50 -0.45 82
IV.CSP1.EHZ. 2020-10-28T00:13:58.69 0.3 undecidable manual P 43 0.634 50 -0.51 61
IV.SACS.HHZ. 2020-10-28T00:13:58.03 0.3 undecidable manual P 293 0.5612 50 0.07 68
IV.MTCE.HHZ. 2020-10-28T00:13:58.74 0.1 undecidable manual P 171 0.6133 50 -0.1 90
IV.CAMP.HHE. 2020-10-28T00:13:58.00 0.1 undecidable manual P 99 0.5927 50 -0.5 83
IV.MTRA.EHZ. 2020-10-28T00:13:57.90 0.1 undecidable manual P 77 0.5891 50 -0.54 82
IV.BARO.EHZ. 2020-10-28T00:13:57.94 0.1 undecidable manual P 228 0.563 50 -0.04 92
IV.ATCC.EHZ. 2020-10-28T00:13:57.34 0.3 undecidable manual P 2 0.5567 50 -0.53 62
IV.MMO1.EHZ. 2020-10-28T00:13:57.83 0.3 undecidable manual P 62 0.5891 50 -0.61 60
IV.SMA1.EHZ. 2020-10-28T00:13:56.98 0.3 undecidable manual P 90 0.5306 50 -0.46 63
IV.MC2.EHZ. 2020-10-28T00:13:56.67 0.3 undecidable manual P 56 0.5081 50 -0.38 65
IV.FDMO.HHZ. 2020-10-28T00:13:56.93 0.1 undecidable manual P 40 0.5351 50 -0.58 81
IV.T1299.EHN. 2020-10-28T00:13:56.39 0.1 undecidable manual P 89 0.4919 50 -0.38 87
IV.RM33.EHZ. 2020-10-28T00:13:55.58 0.3 undecidable manual P 105 0.4587 50 -0.62 61
IV.MGAB.HHZ. 2020-10-28T00:13:55.68 0.3 undecidable manual P 308 0.4641 50 -0.62 61
IV.CESI.HHZ. 2020-10-28T00:13:55.14 0.1 undecidable manual P 30 0.4326 50 -0.61 82
IV.NRCA.HHZ. 2020-10-28T00:13:54.99 0.1 undecidable manual P 61 0.4209 50 -0.56 84
IV.SRES.HHE. 2020-10-28T00:13:54.61 0.1 undecidable manual P 191 0.3993 97 -0.5 86
IV.ASSB.HHZ. 2020-10-28T00:13:54.79 0.1 undecidable manual P 5 0.4146 50 -0.66 81
IV.MOMA.HHZ. 2020-10-28T00:13:53.22 0.6 undecidable manual S 350 0.1781 105 -0.04 50
IV.LNSS.HHZ. 2020-10-28T00:13:53.21 0.1 undecidable manual P 95 0.3148 98 -0.05 96
IT.FOPC.HGE. 2020-10-28T00:13:53.86 0.1 undecidable manual P 11 0.3471 98 -0.1 95
IT.GNU.HGN. 2020-10-28T00:13:53.29 0.6 undecidable manual S 350 0.1781 105 0.04 50
IV.ARRO.EHZ. 2020-10-28T00:13:52.05 0.3 undecidable manual S 114 0.1223 111 0.82 60
IT.GNU.HGN. 2020-10-28T00:13:50.39 0.1 undecidable manual P 350 0.1781 105 0.13 97
IV.MOMA.HHZ. 2020-10-28T00:13:50.39 0.1 undecidable manual P 350 0.1781 105 0.13 97
IV.ARRO.EHZ. 2020-10-28T00:13:49.67 0.1 undecidable manual P 114 0.1223 111 0.58 88
IV.CESX.HHN. 2020-10-28T00:13:47.52 0.1 positive manual P 224 0.0279 149 0.14 100
IV.CESX.HHN. 2020-10-28T00:13:47.99 0.1 undecidable manual S 224 0.0279 149 -0.28 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:2.1 0.001535 0.24 AML other m 2020-10-28T00:13:53.67
IV.MOMA.HHN. ML:2.4 0.00205 1.78 AML other m 2020-10-28T00:13:53.93
IV.MOMA.HNN. ML:2.4 0.00186 1.78 AML other m 2020-10-28T00:13:53.94
IV.ARRO.EHN. ML:2.4 0.002755 0.24 AML other m 2020-10-28T00:13:54.85
IV.MOMA.HNE. ML:2.3 0.00173 0.2 AML other m 2020-10-28T00:13:56.06
IV.MOMA.HHE. ML:2.3 0.00184 0.2 AML other m 2020-10-28T00:13:56.06
IV.LNSS.HHE. ML:2.2 0.0006515 0.28 AML other m 2020-10-28T00:14:01.35
IV.LNSS.HHN. ML:2.2 0.0007555 0.4 AML other m 2020-10-28T00:14:01.70
IV.NRCA.HHE. ML:2.1 0.000354 0.84 AML other m 2020-10-28T00:14:03.06
IV.ASSB.HHN. ML:1.9 0.000249 0.36 AML other m 2020-10-28T00:14:03.30
IV.CESI.HHN. ML:2.2 0.000489 0.66 AML other m 2020-10-28T00:14:03.56
IV.ASSB.HHE. ML:2 0.000309 0.92 AML other m 2020-10-28T00:14:04.00
IV.MGAB.HHE. ML:2.3 0.000547 1.52 AML other m 2020-10-28T00:14:05.01
IV.MGAB.HNE. ML:2.3 0.0005755 1.5 AML other m 2020-10-28T00:14:05.02
IV.CESI.HHE. ML:2 0.0002705 0.58 AML other m 2020-10-28T00:14:05.32
IV.NRCA.HHN. ML:2 0.0002825 0.16 AML other m 2020-10-28T00:14:05.46
IV.FDMO.HHE. ML:2.2 0.0002995 0.78 AML other m 2020-10-28T00:14:06.70
IV.MGAB.HHN. ML:2.1 0.00029 0.34 AML other m 2020-10-28T00:14:07.03
IV.MGAB.HNN. ML:2.1 0.000302 0.34 AML other m 2020-10-28T00:14:07.21
IV.RM33.EHE. ML:2.1 0.000324 0.32 AML other m 2020-10-28T00:14:07.52
IV.FDMO.HHN. ML:2 0.000207 1.08 AML other m 2020-10-28T00:14:07.72
IV.ATCC.EHE. ML:2.2 0.0002925 0.28 AML other m 2020-10-28T00:14:08.18
IV.SMA1.EHE. ML:2.2 0.000369 0.72 AML other m 2020-10-28T00:14:08.43
IV.SMA1.EHN. ML:2.3 0.00041 0.64 AML other m 2020-10-28T00:14:08.75
IV.RM33.EHN. ML:1.9 0.0002235 0.44 AML other m 2020-10-28T00:14:09.46
IV.MTCE.HHE. ML:1.7 9.305E-5 0.44 AML other m 2020-10-28T00:14:09.50
IV.CSP1.EHN. ML:2.5 0.0004885 0.48 AML other m 2020-10-28T00:14:09.95
IV.SNTG.HHE. ML:1.6 6.35E-5 0.26 AML other m 2020-10-28T00:14:10.45
IV.SACS.HHE. ML:1.7 9.62E-5 0.7 AML other m 2020-10-28T00:14:11.14
IV.SACS.HHN. ML:1.8 0.0001098 0.94 AML other m 2020-10-28T00:14:11.16
IV.CSP1.EHE. ML:2.5 0.000592 0.3 AML other m 2020-10-28T00:14:11.66
IV.ATCC.EHN. ML:2 0.000214 1.28 AML other m 2020-10-28T00:14:12.80
IV.MURB.HNE. ML:2.6 0.000628 0.28 AML other m 2020-10-28T00:14:13.43
IV.MURB.HHE. ML:2.5 0.0005445 0.26 AML other m 2020-10-28T00:14:13.44
IV.SNTG.HHN. ML:1.8 0.00011115 1 AML other m 2020-10-28T00:14:14.61
IV.MTCE.HHN. ML:1.6 6.45E-5 0.42 AML other m 2020-10-28T00:14:14.08
IV.EL6.EHE. ML:2.3 0.000247 0.26 AML other m 2020-10-28T00:14:14.62
IV.MURB.HHN. ML:2.5 0.000579 0.26 AML other m 2020-10-28T00:14:15.83
IV.ATMI.HHE. ML:2.3 0.0002875 1.14 AML other m 2020-10-28T00:14:16.87
IV.SAP2.EHN. ML:2.8 0.000907 0.26 AML other m 2020-10-28T00:14:17.01
IV.ATFO.HHN. ML:2 0.00012515 0.34 AML other m 2020-10-28T00:14:17.10
IV.MURB.HNN. ML:2.5 0.0005045 1.06 AML other m 2020-10-28T00:14:17.97
IV.ATFO.HHE. ML:2 0.000127 0.26 AML other m 2020-10-28T00:14:17.94
IV.ATMI.HHN. ML:2.4 0.0003355 1.74 AML other m 2020-10-28T00:14:17.95
IV.GUMA.HHN. ML:2.3 0.0003285 1.44 AML other m 2020-10-28T00:14:18.27
IV.EL6.EHN. ML:2.3 0.0002535 0.48 AML other m 2020-10-28T00:14:19.38
IV.ATPI.EHN. ML:1.9 9.62E-5 0.36 AML other m 2020-10-28T00:14:20.69
IV.ATPI.EHE. ML:1.7 5.455E-5 0.6 AML other m 2020-10-28T00:14:21.05
IV.ARVD.HHE. ML:1.8 6.07E-5 0.44 AML other m 2020-10-28T00:14:21.36
IV.GUMA.HHE. ML:2.4 0.000415 1.56 AML other m 2020-10-28T00:14:23.07
IV.FAGN.HHN. ML:2.2 0.0001975 0.42 AML other m 2020-10-28T00:14:24.44
IV.SAP2.EHE. ML:2 0.0001511 0.84 AML other m 2020-10-28T00:14:26.93
IV.ARVD.HHN. ML:1.7 4.98E-5 1.48 AML other m 2020-10-28T00:14:27.14
IV.MNTT.EHN. ML:2.6 0.000404 0.34 AML other m 2020-10-28T00:14:28.70
IV.MNTT.EHE. ML:2.5 0.000361 1.58 AML other m 2020-10-28T00:14:28.17
IV.FAGN.HHE. ML:2.3 0.000225 0.58 AML other m 2020-10-28T00:14:35.63
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