Earthquake with magnitude of ML 1.0 on date 18-11-2020 and time 11:18:13 (UTC) in region 1 km W Serra San Quirico (AN)

A magnitude ML 1.0 earthquake occured in region: 1 km W Serra San Quirico (AN), on

  • 18-11-2020 11:18:13 (UTC)
  • 18-11-2020 12:18:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.45, 13 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
Serra San Quirico AN 1 2850 2850
Mergo AN 4 1037 3887
Genga AN 6 1797 5684
Rosora AN 7 1985 7669
Arcevia AN 8 4612 12281
Castelplanio AN 8 3540 15821
Cupramontana AN 9 4756 20577
Poggio San Marcello AN 9 693 21270
Maiolati Spontini AN 10 6248 27518
Montecarotto AN 10 1987 29505
Poggio San Vicino MC 10 246 29751
Serra de' Conti AN 11 3746 33497
Sassoferrato AN 12 7285 40782
Monte Roberto AN 12 3061 43843
Apiro MC 12 2280 46123
Castelbellino AN 13 4947 51070
San Paolo di Jesi AN 14 933 52003
Cerreto d'Esi AN 14 3817 55820
Fabriano AN 15 31480 87300
Barbara AN 15 1368 88668
Staffolo AN 15 2253 90921
San Lorenzo in Campo PU 18 3414 94335
Ostra Vetere AN 18 3311 97646
Castelleone di Suasa AN 18 1676 99322
Pergola PU 19 6333 105655
Cingoli MC 19 10352 116007
Serra Sant'Abbondio PU 19 1027 117034
Belvedere Ostrense AN 20 2234 119268

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km S of Fano (60888 inhabitants)
46 Km W of Ancona (100861 inhabitants)
52 Km S of Pesaro (94582 inhabitants)
60 Km NE of Foligno (57155 inhabitants)
63 Km NE of Perugia (166134 inhabitants)
77 Km SE of Rimini (147750 inhabitants)
90 Km E of Arezzo (99543 inhabitants)
98 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 1.0 2020-11-18
11:18:13
43.45 13 9 2020-11-18
11:29:04
Sala Sismica INGV-Roma 84824251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-18 11:18:13 ± 0.14
Latitude 43.45 ± 0.01
Longitude 13.00 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84824251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 851
Semi-minor axis of confidence ellipse (meter) 415
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 30
Circular confidence region, given by single value of horizontal uncertainty (meter) 850
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.06655
Epicentral distance of station farthest from the epicenter (degree) 0.41639
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 84824251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-18 11:29:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2020-11-18T11:18:29.41 0.6 undecidable manual S 171 0.4164 50 0.1 47
IV.MPAG.EHZ. 2020-11-18T11:18:24.49 0.6 undecidable manual S 316 0.2527 107 0.36 46
IV.FRON.EHZ. 2020-11-18T11:18:23.05 0.3 undecidable manual S 289 0.2122 110 0.38 70
IV.FDMO.HHZ. 2020-11-18T11:18:22.28 1.0 positive manual P 171 0.4164 50 -0.54 21
IV.CING.HNE. 2020-11-18T11:18:21.06 0.1 undecidable manual S 117 0.1574 116 0.33 95
IV.EL6.EHZ. 2020-11-18T11:18:20.10 0.3 undecidable manual S 149 0.1394 119 0.01 77
IV.SSFR.HHZ. 2020-11-18T11:18:20.89 0.3 undecidable manual S 266 0.161 116 0.07 75
IV.MPAG.EHZ. 2020-11-18T11:18:19.73 0.6 undecidable manual P 316 0.2527 107 -0.1 49
IV.FRON.EHZ. 2020-11-18T11:18:18.91 1.0 negative manual P 289 0.2122 110 -0.08 25
IV.EL6.EHZ. 2020-11-18T11:18:17.06 0.6 positive manual P 149 0.1394 119 -0.44 47
IV.SSFR.HHZ. 2020-11-18T11:18:17.81 0.3 negative manual P 266 0.161 116 -0.12 75
IV.CING.HNE. 2020-11-18T11:18:17.84 0.3 undecidable manual P 117 0.1574 116 -0.03 76
IV.ARVD.HHZ. 2020-11-18T11:18:17.70 0.1 undecidable manual S 318 0.0665 139 -0.19 100
IV.ARVD.HHZ. 2020-11-18T11:18:16.05 0.1 negative manual P 318 0.0665 139 -0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHN. ML:1 5.85E-5 0.86 AML other m 2020-11-18T11:18:25.71
IV.ARVD.HHE. ML:1.1 0.0001965 0.94 AML other m 2020-11-18T11:18:18.37
IV.SSFR.HHN. ML:1 0.0001446 0.2 AML other m 2020-11-18T11:18:23.48
IV.FRON.EHE. ML:1 6.13E-5 1.56 AML other m 2020-11-18T11:18:23.84
IV.SSFR.HHE. ML:1 0.0001287 1.16 AML other m 2020-11-18T11:18:24.65
IV.EL6.EHE. ML:0.9 7.8601385E-5 0.1216 AML other m 2020-11-18T11:18:20.68
IV.SSFR.HNE. ML:1.3 0.0001838927 0.7872 AML other m 2020-11-18T11:18:21.67
IV.SSFR.HNN. ML:1.3 0.0001665632 0.9792 AML other m 2020-11-18T11:18:20.86
IV.FDMO.HHE. ML:0.7 1.6201925E-5 1.4208 AML other m 2020-11-18T11:18:29.91
IV.FDMO.HHN. ML:0.7 1.4842805E-5 0.8768 AML other m 2020-11-18T11:18:30.08
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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