Earthquake with magnitude of ML 1.1 on date 22-01-2020 and time 08:31:24 (Italy) in region 6 km W Sassoferrato (AN)

A magnitude ML 1.1 earthquake occured in region: 6 km W Sassoferrato (AN), on

  • 22-01-2020 07:31:24 (UTC)
  • 22-01-2020 08:31:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.43, 12.78 at 13 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
Sassoferrato AN 7 7285 7285
Serra Sant'Abbondio PU 7 1027 8312
Costacciaro PG 9 1216 9528
Scheggia e Pascelupo PG 9 1393 10921
Frontone PU 10 1300 12221
Sigillo PG 11 2404 14625
Genga AN 13 1797 16422
Cantiano PU 13 2245 18667
Fabriano AN 14 31480 50147
Fossato di Vico PG 15 2840 52987
Arcevia AN 15 4612 57599
Pergola PU 16 6333 63932
Cagli PU 17 8731 72663
Gubbio PG 18 32216 104879
Serra San Quirico AN 19 2850 107729

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NE of Perugia (166134 inhabitants)
50 Km SW of Fano (60888 inhabitants)
53 Km N of Foligno (57155 inhabitants)
55 Km S of Pesaro (94582 inhabitants)
63 Km W of Ancona (100861 inhabitants)
73 Km S of Rimini (147750 inhabitants)
73 Km E of Arezzo (99543 inhabitants)
90 Km SE of Cesena (96758 inhabitants)
97 Km N 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
Rev 100 ML 1.1 2020-01-22
07:31:24
43.43 12.78 13 2020-01-22
07:41:17
Sala Sismica INGV-Roma 75716471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-22 07:31:24 ± 0.05
Latitude 43.43 ± 0.00
Longitude 12.78 ± 0.00
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75716471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 252
Semi-minor axis of confidence ellipse (meter) 116
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00809
Epicentral distance of station farthest from the epicenter (degree) 0.2698
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 75716471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-22 07:41:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HHZ. 2020-01-22T07:31:34.13 0.6 undecidable manual S 228 0.2482 97 0.22 47
IV.TB01.DHZ.01 2020-01-22T07:31:34.03 0.6 undecidable manual S 260 0.2545 97 -0.05 48
IV.ATPC.HNZ. 2020-01-22T07:31:33.86 0.6 undecidable manual S 283 0.2401 98 0.19 47
IV.NARO.HHZ. 2020-01-22T07:31:33.31 0.6 undecidable manual S 322 0.2329 98 -0.14 48
IV.MPAG.EHZ. 2020-01-22T07:31:32.61 0.6 undecidable manual S 356 0.2014 101 0.08 48
IV.SNTG.HHZ. 2020-01-22T07:31:32.76 0.6 undecidable manual S 146 0.2086 100 0.02 49
IV.ATFO.HHZ. 2020-01-22T07:31:31.24 0.6 undecidable manual S 248 0.1637 107 -0.2 48
IV.ATBU.EHZ. 2020-01-22T07:31:31.92 0.6 undecidable manual S 286 0.1745 105 0.16 48
IV.TB03.DHZ.01 2020-01-22T07:31:30.42 0.6 undecidable manual P 264 0.2698 96 0.31 46
IV.ARVD.HHZ. 2020-01-22T07:31:30.57 0.6 undecidable manual S 59 0.1358 114 -0.11 49
IV.FOSV.EHZ. 2020-01-22T07:31:30.47 0.6 undecidable manual S 186 0.134 115 -0.15 48
IV.SNTG.HHZ. 2020-01-22T07:31:29.07 0.3 undecidable manual P 146 0.2086 100 0 74
IV.ATPC.HNZ. 2020-01-22T07:31:29.52 0.3 undecidable manual P 283 0.2401 98 -0.08 73
IV.NARO.HHZ. 2020-01-22T07:31:29.37 0.3 undecidable manual P 322 0.2329 98 -0.11 73
IV.TB01.DHZ.01 2020-01-22T07:31:29.81 0.3 undecidable manual P 260 0.2545 97 -0.03 73
IV.MURB.HHZ. 2020-01-22T07:31:29.84 0.3 undecidable manual P 228 0.2482 97 0.09 72
IV.FRON.EHZ. 2020-01-22T07:31:29.63 0.6 undecidable manual S 336 0.098 128 -0.07 50
IV.ATSC.EHZ. 2020-01-22T07:31:29.02 0.6 undecidable manual S 266 0.0683 141 -0.06 50
IV.ARVD.HHZ. 2020-01-22T07:31:28.00 0.3 undecidable manual P 59 0.1358 114 0.12 73
IV.SSFR.HHZ. 2020-01-22T07:31:28.56 0.6 undecidable manual S 11 0.0081 175 0.15 50
IV.PIEI.HHZ. 2020-01-22T07:31:28.74 0.3 undecidable manual P 301 0.2077 100 -0.31 70
IV.ATFO.HHZ. 2020-01-22T07:31:28.23 0.3 undecidable manual P 248 0.1637 107 -0.09 73
IV.MPAG.EHZ. 2020-01-22T07:31:28.89 0.3 undecidable manual P 356 0.2014 101 -0.05 74
IV.ATBU.EHZ. 2020-01-22T07:31:28.70 0.3 undecidable manual P 286 0.1745 105 0.19 71
IV.FRON.EHZ. 2020-01-22T07:31:27.29 0.3 undecidable manual P 336 0.098 128 -0.03 75
IV.FOSV.EHZ. 2020-01-22T07:31:27.80 0.1 undecidable manual P 186 0.134 115 -0.05 99
IV.ATSC.EHZ. 2020-01-22T07:31:26.96 0.3 undecidable manual P 266 0.0683 141 0 76
IV.SSFR.HHZ. 2020-01-22T07:31:26.72 0.1 undecidable manual P 11 0.0081 175 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHE. ML:1.3 0.0002610606 0.1024 AML other m 2020-01-22T07:31:28.81
IV.SSFR.HHN. ML:1.6 0.00050805165 0.1792 AML other m 2020-01-22T07:31:28.95
IV.SSFR.HNE. ML:1.5 0.000456543 0.0512 AML other m 2020-01-22T07:31:28.86
IV.SSFR.HNN. ML:1.7 0.00073445315 0.0512 AML other m 2020-01-22T07:31:28.76
IV.FRON.EHE. ML:0.8 5.963213E-5 0.0832 AML other m 2020-01-22T07:31:29.70
IV.FRON.EHN. ML:0.9 8.9270085E-5 0.1344 AML other m 2020-01-22T07:31:30.91
IV.FOSV.EHE. ML:0.9 7.44363E-5 0.1024 AML other m 2020-01-22T07:31:30.69
IV.FOSV.EHN. ML:1.1 0.000107522415 0.1024 AML other m 2020-01-22T07:31:30.57
IV.ATFO.HHE. ML:0.8 4.950909E-5 0.16 AML other m 2020-01-22T07:31:32.30
IV.ATFO.HHN. ML:0.9 5.5410355E-5 0.1984 AML other m 2020-01-22T07:31:32.32
IV.MPAG.EHE. ML:0.9 4.983955E-5 0.2176 AML other m 2020-01-22T07:31:32.77
IV.MPAG.EHN. ML:1 5.3678185E-5 0.0768 AML other m 2020-01-22T07:31:32.73
IV.SNTG.HHE. ML:0.7 3.1885465E-5 0.1152 AML other m 2020-01-22T07:31:33.18
IV.SNTG.HHN. ML:0.8 3.8249585E-5 0.224 AML other m 2020-01-22T07:31:34.16
IV.NARO.HHE. ML:1 6.058647E-5 0.0832 AML other m 2020-01-22T07:31:33.51
IV.NARO.HHN. ML:1.1 6.5023495E-5 0.0768 AML other m 2020-01-22T07:31:33.46
IV.MURB.HNE. ML:1.4 0.000135523815 0.2688 AML other m 2020-01-22T07:31:34.41
IV.MURB.HNN. ML:1.4 0.000124505285 0.2624 AML other m 2020-01-22T07:31:34.89
IV.MURB.HHE. ML:1.5 0.00015781955 0.2624 AML other m 2020-01-22T07:31:34.53
IV.MURB.HHN. ML:1.6 0.00018980325 0.2432 AML other m 2020-01-22T07:31:34.76
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