Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 02-11-2020 and time 09:59:17 (Italy) in region 3 km N Sarnano (MC)

A magnitude ML 1.6 earthquake occured in region: 3 km N Sarnano (MC), on

  • 02-11-2020 08:59:17 (UTC)
  • 02-11-2020 09:59:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.06, 13.3 at 23 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sarnano MC 3 3264 3264
Gualdo MC 3 815 4079
San Ginesio MC 6 3498 7577
Cessapalombo MC 6 512 8089
Camporotondo di Fiastrone MC 8 563 8652
Sant'Angelo in Pontano MC 9 1436 10088
Bolognola MC 9 142 10230
Amandola FM 10 3629 13859
Penna San Giovanni MC 10 1108 14967
Caldarola MC 10 1823 16790
Acquacanina MC 11 121 16911
Ripe San Ginesio MC 11 852 17763
Fiastra MC 12 559 18322
Monte San Martino MC 12 765 19087
Colmurano MC 12 1263 20350
Belforte del Chienti MC 13 1886 22236
Montefortino FM 14 1178 23414
Smerillo FM 14 365 23779
Comunanza AP 15 3166 26945
Loro Piceno MC 15 2401 29346
Falerone FM 15 3337 32683
Montefalcone Appennino FM 16 424 33107
Serrapetrona MC 16 966 34073
Servigliano FM 16 2336 36409
Montappone FM 16 1682 38091
Urbisaglia MC 17 2628 40719
Tolentino MC 17 20069 60788
Monte Vidon Corrado FM 17 731 61519
Santa Vittoria in Matenano FM 17 1330 62849
Fiordimonte MC 17 202 63051
Pievebovigliana MC 17 866 63917
Massa Fermana FM 18 963 64880
Montemonaco AP 18 604 65484
Ussita MC 18 444 65928
Monteleone di Fermo FM 19 395 66323
Force AP 19 1354 67677
Montelparo FM 20 778 68455
Belmonte Piceno FM 20 646 69101

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km E of Foligno (57155 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
64 Km S of Ancona (100861 inhabitants)
74 Km E of Perugia (166134 inhabitants)
77 Km NE of Terni (111501 inhabitants)
79 Km N of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
99 Km SE of Pesaro (94582 inhabitants)
100 Km NW of Pescara (121014 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 1.6 2020-11-02
08:59:17		 43.06 13.3 23 2020-11-02
09:04:38		 Sala Sismica INGV-Roma 84381851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-02 08:59:17 ± 0.15
Latitude 43.06 ± 0.00
Longitude 13.30 ± 0.01
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84381851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 667
Semi-minor axis of confidence ellipse (meter) 116
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 246
Circular confidence region, given by single value of horizontal uncertainty (meter) 670
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.47304
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 84381851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-02 09:04:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2020-11-02T08:59:38.70 3.0 undecidable manual S -0.06 0
IV.RM33.EHZ. 2020-11-02T08:59:37.66 3.0 undecidable manual S -0.01 0
IV.GAVE.EHZ. 2020-11-02T08:59:35.03 0.1 undecidable manual S 219 0.473 106 0.61 80
IV.SMA1.EHZ. 2020-11-02T08:59:33.38 0.3 undecidable manual S 176 0.4317 108 0.13 68
IV.CESI.HHZ. 2020-11-02T08:59:30.01 0.3 undecidable manual S 259 0.2932 118 0.55 64
IV.SNTG.HHZ. 2020-11-02T08:59:30.56 0.1 undecidable manual S 307 0.3247 115 0.28 91
IV.ATFO.HHZ. 2020-11-02T08:59:29.55 3.0 positive manual P 0.13 0
IV.MNTT.EHZ. 2020-11-02T08:59:28.57 0.3 undecidable manual S 90 0.2167 127 1.02 52
IV.NRCA.HHZ. 2020-11-02T08:59:28.76 0.3 undecidable manual S 211 0.2653 121 0.03 73
IV.CAMP.HHZ. 2020-11-02T08:59:27.83 3.0 undecidable manual P -0.25 0
IV.GAVE.EHZ. 2020-11-02T08:59:27.28 0.1 undecidable manual P 219 0.473 106 0.02 93
IV.TERO.HHZ. 2020-11-02T08:59:27.41 3.0 positive manual P 0.01 0
IV.ASSB.HHZ. 2020-11-02T08:59:27.04 3.0 negative manual P -0.05 0
IV.MC2.EHZ. 2020-11-02T08:59:26.67 0.3 undecidable manual S 208 0.17 135 0.16 72
IV.SMA1.EHZ. 2020-11-02T08:59:26.15 0.1 undecidable manual P 176 0.4317 108 -0.43 87
IV.MF5.EHZ. 2020-11-02T08:59:26.10 0.6 undecidable manual S 122 0.1394 142 0.21 48
IV.FDMO.HHZ. 2020-11-02T08:59:26.09 0.3 undecidable manual S 261 0.1565 138 -0.13 72
IV.MMO1.EHZ. 2020-11-02T08:59:26.17 0.3 undecidable manual S 173 0.1637 136 -0.2 71
IV.CSP1.EHZ. 2020-11-02T08:59:24.71 0.3 undecidable manual S 294 0.0746 158 -0.21 72
IV.SNTG.HHZ. 2020-11-02T08:59:24.80 0.1 undecidable manual P 307 0.3247 115 -0.07 95
IV.EL6.EHZ. 2020-11-02T08:59:24.40 3.0 negative manual P -0.03 0
IV.SAP2.EHZ. 2020-11-02T08:59:24.80 0.3 undecidable manual S 65 0.0809 156 -0.19 73
IV.GUMA.HHZ. 2020-11-02T08:59:24.52 0.3 undecidable manual S 88 0.027 172 -0.02 76
IV.CESI.HHZ. 2020-11-02T08:59:24.34 0.1 undecidable manual P 259 0.2932 118 -0.05 96
IV.NRCA.HHZ. 2020-11-02T08:59:23.75 0.1 undecidable manual P 211 0.2653 121 -0.22 93
IV.MNTT.EHZ. 2020-11-02T08:59:23.45 0.1 undecidable manual P 90 0.2167 127 0.16 94
IV.MF5.EHZ. 2020-11-02T08:59:22.21 0.1 undecidable manual P 122 0.1394 142 -0.12 98
IV.FDMO.HHZ. 2020-11-02T08:59:22.32 0.1 negative manual P 261 0.1565 138 -0.2 95
IV.MMO1.EHZ. 2020-11-02T08:59:22.35 0.1 positive manual P 173 0.1637 136 -0.26 94
IV.MC2.EHZ. 2020-11-02T08:59:22.67 0.1 undecidable manual P 208 0.17 135 -0.02 99
IV.GUMA.HHZ. 2020-11-02T08:59:21.43 0.1 undecidable manual P 88 0.027 172 -0.12 100
IV.CSP1.EHZ. 2020-11-02T08:59:21.55 0.1 negative manual P 294 0.0746 158 -0.22 97
IV.SAP2.EHZ. 2020-11-02T08:59:21.84 0.1 undecidable manual P 65 0.0809 156 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HHE. ML:1.7 0.000381 0.26 AML other m 2020-11-02T08:59:24.63
IV.GUMA.HHN. ML:1.5 0.000213 0.44 AML other m 2020-11-02T08:59:24.71
IV.CSP1.EHE. ML:2 0.00066 0.26 AML other m 2020-11-02T08:59:24.84
IV.CSP1.EHN. ML:2.1 0.000852 0.24 AML other m 2020-11-02T08:59:24.98
IV.SAP2.EHE. ML:1.6 0.000256 0.24 AML other m 2020-11-02T08:59:25.74
IV.FDMO.HHE. ML:1.6 0.0001935 0.18 AML other m 2020-11-02T08:59:26.24
IV.FDMO.HHN. ML:1.3 0.0001011 0.36 AML other m 2020-11-02T08:59:26.40
IV.SAP2.EHN. ML:2.2 0.001021 0.24 AML other m 2020-11-02T08:59:28.25
IV.MNTT.EHE. ML:1.9 0.0003685 0.3 AML other m 2020-11-02T08:59:28.69
IV.NRCA.HHN. ML:1.8 0.0002475 1.28 AML other m 2020-11-02T08:59:29.04
IV.NRCA.HHE. ML:2 0.0004005 0.12 AML other m 2020-11-02T08:59:29.14
IV.MNTT.EHN. ML:1.8 0.0002575 0.74 AML other m 2020-11-02T08:59:29.76
IV.CESI.HHE. ML:1.4 9.02E-5 0.78 AML other m 2020-11-02T08:59:30.43
IV.CESI.HHN. ML:1.6 0.000129 0.18 AML other m 2020-11-02T08:59:30.44
IV.SNTG.HHN. ML:1.6 0.000122 0.3 AML other m 2020-11-02T08:59:30.89
IV.SNTG.HHE. ML:1.4 7.425E-5 0.12 AML other m 2020-11-02T08:59:30.80
IV.EL6.EHN. ML:1.6 0.0001455 1.52 AML other m 2020-11-02T08:59:30.05
IV.EL6.EHE. ML:1.7 0.0001745 0.8 AML other m 2020-11-02T08:59:31.38
IV.SMA1.EHN. ML:1.2 3.995E-5 0.18 AML other m 2020-11-02T08:59:33.77
IV.SMA1.EHE. ML:1.3 4.375E-5 0.42 AML other m 2020-11-02T08:59:34.43
IV.GAVE.EHE. ML:1.8 0.000148 0.28 AML other m 2020-11-02T08:59:35.27
IV.GAVE.EHN. ML:1.7 0.00010605 0.26 AML other m 2020-11-02T08:59:35.29
IV.ASSB.HHN. ML:1.5 7.035E-5 1.84 AML other m 2020-11-02T08:59:35.04
IV.ASSB.HHE. ML:1.4 5.735E-5 1.7 AML other m 2020-11-02T08:59:36.97
IV.TERO.HHN. ML:1.2 3.15E-5 1.64 AML other m 2020-11-02T08:59:36.07
IV.TERO.HHE. ML:1.2 3.085E-5 0.72 AML other m 2020-11-02T08:59:37.09
IV.MOMA.HHN. ML:1.6 6.695E-5 1.56 AML other m 2020-11-02T08:59:39.96
IV.MOMA.HHE. ML:1.7 8.205E-5 0.82 AML other m 2020-11-02T08:59:40.46
IV.ATFO.HHE. ML:1.3 3.54E-5 0.38 AML other m 2020-11-02T08:59:40.38
IV.ATFO.HHN. ML:1.4 4.73E-5 0.86 AML other m 2020-11-02T08:59:41.53
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