Earthquake with magnitude of ML 0.8 on date 16-10-2020 and time 13:17:11 (UTC) in region 2 km W Serra San Quirico (AN)

A magnitude ML 0.8 earthquake occured in region: 2 km W Serra San Quirico (AN), on

  • 16-10-2020 13:17:11 (UTC)
  • 16-10-2020 15:17:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.46, 12.99 at 12 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
Serra San Quirico AN 2 2850 2850
Mergo AN 4 1037 3887
Genga AN 5 1797 5684
Arcevia AN 7 4612 10296
Rosora AN 7 1985 12281
Castelplanio AN 8 3540 15821
Poggio San Marcello AN 9 693 16514
Montecarotto AN 10 1987 18501
Cupramontana AN 10 4756 23257
Serra de' Conti AN 10 3746 27003
Maiolati Spontini AN 11 6248 33251
Sassoferrato AN 11 7285 40536
Poggio San Vicino MC 11 246 40782
Monte Roberto AN 12 3061 43843
Castelbellino AN 13 4947 48790
Apiro MC 13 2280 51070
Barbara AN 14 1368 52438
San Paolo di Jesi AN 15 933 53371
Cerreto d'Esi AN 15 3817 57188
Fabriano AN 15 31480 88668
Staffolo AN 16 2253 90921
San Lorenzo in Campo PU 17 3414 94335
Castelleone di Suasa AN 17 1676 96011
Ostra Vetere AN 17 3311 99322
Pergola PU 18 6333 105655
Serra Sant'Abbondio PU 18 1027 106682
Belvedere Ostrense AN 20 2234 108916

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km S of Fano (60888 inhabitants)
46 Km W of Ancona (100861 inhabitants)
51 Km S of Pesaro (94582 inhabitants)
60 Km NE of Foligno (57155 inhabitants)
62 Km NE of Perugia (166134 inhabitants)
76 Km SE of Rimini (147750 inhabitants)
90 Km E of Arezzo (99543 inhabitants)
97 Km SE of Cesena (96758 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 0.8 2020-10-16
13:17:11
43.46 12.99 12 2020-10-16
13:23:17
Sala Sismica INGV-Roma 83822781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-16 13:17:11 ± 0.12
Latitude 43.46 ± 0.01
Longitude 12.99 ± 0.01
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83822781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1384
Semi-minor axis of confidence ellipse (meter) 300
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 29
Circular confidence region, given by single value of horizontal uncertainty (meter) 1380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 161
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.33725
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 83822781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-16 13:23:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2020-10-16T13:17:40.00 3.0 undecidable manual Pg 0.27 0
IV.SACS.HNZ. 2020-10-16T13:17:29.37 3.0 undecidable manual P -3.66 0
IV.FRON.EHZ. 2020-10-16T13:17:20.41 0.6 undecidable manual S 288 0.2041 96 0.17 50
IV.CING.HHZ. 2020-10-16T13:17:19.09 0.6 undecidable manual S 119 0.1664 101 -0.03 52
IV.SSFR.HNE. 2020-10-16T13:17:18.46 0.6 undecidable manual S 263 0.1547 103 -0.33 49
IV.EL6.EHZ. 2020-10-16T13:17:18.55 0.6 undecidable manual S 148 0.1484 105 -0.04 52
IV.NARO.HHZ. 2020-10-16T13:17:18.78 0.3 negative manual P 298 0.3372 93 -0.12 73
IV.FOSV.EHZ. 2020-10-16T13:17:17.68 0.6 undecidable manual P 227 0.2329 95 0.56 45
IV.MPAG.EHZ. 2020-10-16T13:17:17.30 0.3 undecidable manual P 316 0.2428 94 0.01 76
IV.FRON.EHZ. 2020-10-16T13:17:16.55 0.3 positive manual P 288 0.2041 96 -0.08 76
IV.ARVD.HHZ. 2020-10-16T13:17:16.59 0.6 undecidable manual S 318 0.0576 144 0.23 51
IV.CING.HHZ. 2020-10-16T13:17:16.18 0.6 undecidable manual P 119 0.1664 101 0.19 50
IV.SSFR.HNE. 2020-10-16T13:17:15.59 0.1 undecidable manual P 263 0.1547 103 -0.21 100
IV.EL6.EHZ. 2020-10-16T13:17:15.48 0.3 positive manual P 148 0.1484 105 -0.2 75
IV.ARVD.HHZ. 2020-10-16T13:17:14.59 0.3 undecidable manual P 318 0.0576 144 0.19 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHE. ML:0.6 5.4979375E-5 0.16 AML other m 2020-10-16T13:17:17.05
IV.ARVD.HHN. ML:0.5 4.2108305E-5 0.064 AML other m 2020-10-16T13:17:16.97
IV.EL6.EHE. ML:1.1 9.339451E-5 1.536 AML other m 2020-10-16T13:17:19.44
IV.EL6.EHN. ML:1.1 9.591926E-5 4 AML other m 2020-10-16T13:17:18.83
IV.FRON.EHE. ML:0.6 2.33932835E-5 0.1152 AML other m 2020-10-16T13:17:20.46
IV.FRON.EHN. ML:0.8 3.8049945E-5 0.1408 AML other m 2020-10-16T13:17:20.52
IV.MPAG.EHE. ML:1.1 5.938763E-5 2.8032 AML other m 2020-10-16T13:17:20.51
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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