Earthquake with magnitude of ML 1.2 on date 18-09-2020 and time 08:03:00 (UTC) in region 5 km S Serra San Quirico (AN)

A magnitude ML 1.2 earthquake occured in region: 5 km S Serra San Quirico (AN), on

  • 18-09-2020 08:03:00 (UTC)
  • 18-09-2020 10:03:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.41, 13 at 6 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 5 2850 2850
Genga AN 6 1797 4647
Poggio San Vicino MC 7 246 4893
Mergo AN 8 1037 5930
Cerreto d'Esi AN 10 3817 9747
Rosora AN 10 1985 11732
Cupramontana AN 10 4756 16488
Apiro MC 11 2280 18768
Fabriano AN 11 31480 50248
Arcevia AN 12 4612 54860
Castelplanio AN 12 3540 58400
Sassoferrato AN 12 7285 65685
Maiolati Spontini AN 12 6248 71933
Poggio San Marcello AN 13 693 72626
Monte Roberto AN 14 3061 75687
Montecarotto AN 14 1987 77674
Castelbellino AN 15 4947 82621
San Paolo di Jesi AN 15 933 83554
Staffolo AN 15 2253 85807
Serra de' Conti AN 15 3746 89553
Matelica MC 17 9981 99534
Cingoli MC 18 10352 109886
Esanatoglia MC 18 2034 111920
Gagliole MC 19 620 112540
Barbara AN 20 1368 113908

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km W of Ancona (100861 inhabitants)
49 Km S of Fano (60888 inhabitants)
56 Km NE of Foligno (57155 inhabitants)
57 Km S of Pesaro (94582 inhabitants)
60 Km NE of Perugia (166134 inhabitants)
81 Km SE of Rimini (147750 inhabitants)
91 Km E of Arezzo (99543 inhabitants)
98 Km NE of Terni (111501 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 1.2 2020-09-18
08:03:00
43.41 13 6 2020-09-18
08:09:07
Sala Sismica INGV-Roma 83001891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-18 08:03:00 ± 0.13
Latitude 43.41 ± 0.00
Longitude 13.00 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83001891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 512
Semi-minor axis of confidence ellipse (meter) 316
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 233
Circular confidence region, given by single value of horizontal uncertainty (meter) 510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.03417
Epicentral distance of station farthest from the epicenter (degree) 0.34804
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 83001891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-18 08:09:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-09-18T08:03:13.98 0.6 undecidable manual S 155 0.348 98 0.17 46
IV.MPAG.EHZ. 2020-09-18T08:03:11.79 0.6 undecidable manual S 322 0.2824 100 0.47 44
IV.FRON.EHZ. 2020-09-18T08:03:09.63 0.6 undecidable manual S 299 0.2284 103 0.36 46
IV.CSP1.EHZ. 2020-09-18T08:03:07.53 1.0 undecidable manual P 155 0.348 98 -0.55 21
IV.SNTG.HHZ. 2020-09-18T08:03:06.92 0.6 undecidable manual S 196 0.1583 108 0.25 47
IV.MPAG.EHZ. 2020-09-18T08:03:06.41 0.6 undecidable manual P 322 0.2824 100 -0.23 46
IV.CING.HHE. 2020-09-18T08:03:06.58 0.6 undecidable manual S 103 0.1439 109 0.43 46
IV.FRON.EHZ. 2020-09-18T08:03:05.26 0.6 undecidable manual P 299 0.2284 103 -0.2 47
IV.ARVD.HHZ. 2020-09-18T08:03:04.65 0.6 undecidable manual S 334 0.1007 117 0.05 50
IV.CING.HHE. 2020-09-18T08:03:03.61 0.1 undecidable manual P 103 0.1439 109 -0.05 99
IV.SNTG.HHZ. 2020-09-18T08:03:03.83 0.3 undecidable manual P 196 0.1583 108 -0.12 73
IV.SSFR.HHZ. 2020-09-18T08:03:03.93 0.1 negative manual P 280 0.1619 108 -0.09 98
IV.MMUR.HNZ. 2020-09-18T08:03:02.49 0.6 undecidable manual S 355 0.0342 146 -0.14 50
IV.ARVD.HHZ. 2020-09-18T08:03:02.71 0.3 positive manual P 334 0.1007 117 -0.05 75
IV.EL6.EHZ. 2020-09-18T08:03:02.70 1.0 positive manual P 137 0.107 116 -0.18 24
IV.MMUR.HNZ. 2020-09-18T08:03:01.52 0.1 negative manual P 355 0.0342 146 -0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMUR.HNE. ML:0 0.0021737285 0.352 AML other m 2020-09-18T08:03:04.34
IV.MMUR.HNN. ML:0 0.001487539 0.2176 AML other m 2020-09-18T08:03:03.36
IV.ARVD.HHE. ML:1.1 0.00018296595 0.1792 AML other m 2020-09-18T08:03:06.50
IV.ARVD.HHN. ML:1 0.0001394331 0.1024 AML other m 2020-09-18T08:03:05.81
IV.SNTG.HHE. ML:1.4 0.0002319312 0.224 AML other m 2020-09-18T08:03:07.27
IV.SNTG.HHN. ML:1.3 0.00019448515 0.2816 AML other m 2020-09-18T08:03:07.00
IV.SNTG.HNE. ML:1.4 0.0002369821 0.1984 AML other m 2020-09-18T08:03:07.17
IV.SNTG.HNN. ML:1.4 0.0002462377 0.2688 AML other m 2020-09-18T08:03:07.76
IV.SSFR.HHE. ML:1.4 0.0002238343 0.16 AML other m 2020-09-18T08:03:09.51
IV.SSFR.HHN. ML:1.4 0.0002355545 0.1408 AML other m 2020-09-18T08:03:09.80
IV.SSFR.HNE. ML:1.5 0.00026619985 0.192 AML other m 2020-09-18T08:03:09.51
IV.SSFR.HNN. ML:1.5 0.0002920617 0.1408 AML other m 2020-09-18T08:03:08.31
IV.FRON.EHE. ML:0.9 4.8577025E-5 0.2624 AML other m 2020-09-18T08:03:12.07
IV.FRON.EHN. ML:1 5.7220254E-5 0.2176 AML other m 2020-09-18T08:03:10.59
IV.MPAG.EHE. ML:0.9 3.4614455E-5 0.1984 AML other m 2020-09-18T08:03:15.31
IV.MPAG.EHN. ML:0.9 3.58266435E-5 0.0768 AML other m 2020-09-18T08:03:12.15
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