Earthquake with magnitude of ML 0.9 on date 13-01-2021 and time 20:28:40 (Italy) in region 7 km S Sassoferrato (AN)

A magnitude ML 0.9 earthquake occured in region: 7 km S Sassoferrato (AN), on

  • 13-01-2021 19:28:40 (UTC)
  • 13-01-2021 20:28:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.38, 12.84 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
Sassoferrato AN 7 7285 7285
Fabriano AN 7 31480 38765
Sigillo PG 9 2404 41169
Genga AN 10 1797 42966
Costacciaro PG 10 1216 44182
Fossato di Vico PG 11 2840 47022
Cerreto d'Esi AN 14 3817 50839
Serra Sant'Abbondio PU 14 1027 51866
Scheggia e Pascelupo PG 14 1393 53259
Arcevia AN 16 4612 57871
Serra San Quirico AN 16 2850 60721
Esanatoglia MC 17 2034 62755
Gualdo Tadino PG 17 15208 77963
Frontone PU 17 1300 79263
Mergo AN 19 1037 80300
Matelica MC 19 9981 90281
Poggio San Vicino MC 20 246 90527

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km NE of Perugia (166134 inhabitants)
48 Km N of Foligno (57155 inhabitants)
54 Km S of Fano (60888 inhabitants)
60 Km S of Pesaro (94582 inhabitants)
61 Km W of Ancona (100861 inhabitants)
78 Km E of Arezzo (99543 inhabitants)
79 Km S of Rimini (147750 inhabitants)
92 Km N of Terni (111501 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 0.9 2021-01-13
19:28:40
43.38 12.84 12 2021-01-13
19:36:47
Sala Sismica INGV-Roma 86231741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-13 19:28:40 ± 0.04
Latitude 43.38 ± 0.00
Longitude 12.84 ± 0.00
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 86231741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 260
Semi-minor axis of confidence ellipse (meter) 88
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 353
Circular confidence region, given by single value of horizontal uncertainty (meter) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.29768
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 14
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 86231741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-13 19:36:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NARO.HHZ. 2021-01-13T19:28:52.00 0.6 undecidable manual S 321 0.2977 94 0.17 47
IV.FIU1.HNZ. 2021-01-13T19:28:52.38 3.0 undecidable manual S 0
IV.ATCC.EHZ. 2021-01-13T19:28:50.29 0.6 undecidable manual S 217 0.241 96 0.14 48
IV.MPAG.EHZ. 2021-01-13T19:28:50.73 0.6 undecidable manual S 347 0.2572 95 0.1 48
IV.MURB.HHZ. 2021-01-13T19:28:50.93 0.6 undecidable manual S 243 0.2554 95 0.35 45
IV.PIEI.HHZ. 2021-01-13T19:28:50.90 0.6 undecidable manual S 306 0.2698 95 -0.11 48
IV.SAP2.EHZ. 2021-01-13T19:28:49.11 3.0 undecidable manual P -0.2 0
IV.EL6.EHZ. 2021-01-13T19:28:48.96 0.6 undecidable manual S 104 0.1979 99 0.07 49
IV.FDMO.HHZ. 2021-01-13T19:28:48.29 3.0 negative manual P 0.71 0
IV.ATFO.HHZ. 2021-01-13T19:28:48.80 0.6 undecidable manual S 267 0.1943 99 0.03 49
IV.SNTG.HHZ. 2021-01-13T19:28:47.16 0.6 undecidable manual S 149 0.1439 108 -0.18 48
IV.FIU1.HNZ. 2021-01-13T19:28:47.24 3.0 undecidable manual P 0
IV.ARVD.HHZ. 2021-01-13T19:28:47.20 0.6 undecidable manual S 32 0.1412 109 -0.05 49
IV.FRON.EHZ. 2021-01-13T19:28:47.76 0.6 undecidable manual S 330 0.161 104 -0.06 49
IV.MURB.HHZ. 2021-01-13T19:28:46.49 0.1 undecidable manual P 243 0.2554 95 0.16 95
IV.PIEI.HHZ. 2021-01-13T19:28:46.33 0.1 undecidable manual P 306 0.2698 95 -0.26 92
IV.ATCC.EHZ. 2021-01-13T19:28:46.05 0.1 undecidable manual P 217 0.241 96 -0.04 97
IV.NARO.HHZ. 2021-01-13T19:28:46.92 0.1 undecidable manual P 321 0.2977 94 -0.14 94
IV.CING.HNZ. 2021-01-13T19:28:46.26 0.3 undecidable manual P 91 0.2599 95 -0.15 70
IV.MPAG.EHZ. 2021-01-13T19:28:46.43 0.1 undecidable manual P 347 0.2572 95 0.07 96
IV.EL6.EHZ. 2021-01-13T19:28:45.61 0.1 undecidable manual P 104 0.1979 99 0.25 95
IV.ATFO.HHZ. 2021-01-13T19:28:45.20 0.1 undecidable manual P 267 0.1943 99 -0.09 97
IV.SSFR.HHZ. 2021-01-13T19:28:45.59 0.6 undecidable manual S 325 0.0701 138 0.09 49
IV.FOSV.EHZ. 2021-01-13T19:28:45.93 0.6 undecidable manual S 214 0.1007 124 -0.24 48
IV.FRON.EHZ. 2021-01-13T19:28:44.69 0.1 undecidable manual P 330 0.161 104 -0.05 98
IV.ATSC.EHZ. 2021-01-13T19:28:44.03 0.1 undecidable manual P 293 0.1187 117 -0.03 100
IV.SNTG.HHZ. 2021-01-13T19:28:44.19 1.0 undecidable manual P 149 0.1439 108 -0.28 23
IV.ARVD.HHZ. 2021-01-13T19:28:44.40 0.1 undecidable manual P 32 0.1412 109 -0.01 99
IV.SSFR.HHZ. 2021-01-13T19:28:43.53 0.1 undecidable manual P 325 0.0701 138 0.13 98
IV.FOSV.EHZ. 2021-01-13T19:28:43.64 1.0 undecidable manual P 214 0.1007 124 -0.15 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHE. ML:1.1 0.0001578899 0.1408 AML other m 2021-01-13T19:28:46.44
IV.SSFR.HHN. ML:1 0.0001213079 0.1792 AML other m 2021-01-13T19:28:46.37
IV.FOSV.EHE. ML:1.3 0.0002 0.08 AML other m 2021-01-13T19:28:46.05
IV.FOSV.EHN. ML:1.2 0.000169 0.08 AML other m 2021-01-13T19:28:46.14
IV.ARVD.HHN. ML:0.5 2.71E-5 0.06 AML other m 2021-01-13T19:28:47.49
IV.ARVD.HHE. ML:0.6 3.1747095E-5 0.0768 AML other m 2021-01-13T19:28:47.45
IV.FRON.EHN. ML:0.9 6.43E-5 1.86 AML other m 2021-01-13T19:28:48.05
IV.FRON.EHE. ML:0.9 6.745183E-5 0.1408 AML other m 2021-01-13T19:28:47.97
IV.SSFR.HNE. ML:1.5 0.0003679136 0.0512 AML other m 2021-01-13T19:28:45.74
IV.SSFR.HNN. ML:1.2 0.0001997634 0.0512 AML other m 2021-01-13T19:28:46.04
IV.SNTG.HHE. ML:0.5 2.5368415E-5 0.1664 AML other m 2021-01-13T19:28:48.01
IV.ATFO.HHN. ML:0.5 1.7787469E-5 0.0768 AML other m 2021-01-13T19:28:48.95
IV.ATCC.EHN. ML:0.8 3.033663E-5 0.1792 AML other m 2021-01-13T19:28:50.73
IV.PIEI.HHE. ML:0.8 2.88604E-5 0.0512 AML other m 2021-01-13T19:28:51.48
IV.PIEI.HHN. ML:0.5 1.7147955E-5 0.2432 AML other m 2021-01-13T19:28:51.15
IV.MPAG.EHE. ML:0.6 2.2357153E-5 0.064 AML other m 2021-01-13T19:28:51.11
IV.MURB.HNE. ML:1.4 0.00011385082 0.64 AML other m 2021-01-13T19:28:50.90
IV.MURB.HHN. ML:1 4.6977875E-5 0.2816 AML other m 2021-01-13T19:28:52.33
IV.NARO.HHE. ML:0.7 1.881081E-5 0.064 AML other m 2021-01-13T19:28:53.13
IV.NARO.HHN. ML:0.6 1.5037721E-5 0.064 AML other m 2021-01-13T19:28:52.39
IV.SAP2.EHE. ML:1.4 6.1862495E-5 0.0896 AML other m 2021-01-13T19:28:51.17
IV.SAP2.EHN. ML:2 0.0002508906 0.0512 AML other m 2021-01-13T19:28:49.55
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