Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 13-01-2021 and time 23:25:22 (Italy) in region 4 km SW Scheggia e Pascelupo (PG)

A magnitude ML 0.5 earthquake occured in region: 4 km SW Scheggia e Pascelupo (PG), on

  • 13-01-2021 22:25:22 (UTC)
  • 13-01-2021 23:25:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.38, 12.65 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Scheggia e Pascelupo PG 4 1393 1393
Costacciaro PG 6 1216 2609
Gubbio PG 6 32216 34825
Sigillo PG 9 2404 37229
Cantiano PU 11 2245 39474
Fossato di Vico PG 13 2840 42314
Serra Sant'Abbondio PU 16 1027 43341
Frontone PU 17 1300 44641
Sassoferrato AN 18 7285 51926
Pietralunga PG 19 2111 54037
Cagli PU 19 8731 62768
Gualdo Tadino PG 20 15208 77976

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NE of Perugia (166134 inhabitants)
47 Km N of Foligno (57155 inhabitants)
60 Km SW of Fano (60888 inhabitants)
63 Km E of Arezzo (99543 inhabitants)
63 Km SW of Pesaro (94582 inhabitants)
75 Km W of Ancona (100861 inhabitants)
77 Km S of Rimini (147750 inhabitants)
91 Km N of Terni (111501 inhabitants)
91 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 0.5 2021-01-13
22:25:22		 43.38 12.65 12 2021-01-13
22:33:15		 Sala Sismica INGV-Roma 86232111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-13 22:25:22 ± 0.04
Latitude 43.38 ± 0.00
Longitude 12.65 ± 0.00
Depth (km) 12 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86232111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 209
Semi-minor axis of confidence ellipse (meter) 44
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 302
Circular confidence region, given by single value of horizontal uncertainty (meter) 210
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.07
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2653
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 86232111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-13 22:33:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2021-01-13T22:25:40.10 3.0 undecidable manual S -0.01 0
IV.MURB.HHZ. 2021-01-13T22:25:29.41 0.6 undecidable manual S 218 0.1439 102 0.03 49
IV.FRON.EHZ. 2021-01-13T22:25:29.49 0.6 undecidable manual S 22 0.1529 100 -0.13 48
IV.FOSV.EHZ. 2021-01-13T22:25:28.44 0.6 undecidable manual S 135 0.116 113 -0.13 48
IV.ARVD.HHZ. 2021-01-13T22:25:28.34 3.0 undecidable manual P 0.01 0
IV.NARO.HHZ. 2021-01-13T22:25:28.07 1.0 positive manual P 348 0.2401 93 -0.08 24
IV.SSFR.HNN. 2021-01-13T22:25:28.54 0.6 undecidable manual S 58 0.1151 113 0 49
IV.MPAG.EHZ. 2021-01-13T22:25:28.84 1.0 positive manual P 18 0.2653 92 0.25 23
IV.PIEI.HHZ. 2021-01-13T22:25:27.06 1.0 undecidable manual P 333 0.179 96 -0.05 24
IV.ATSC.EHN. 2021-01-13T22:25:27.18 0.6 undecidable manual S 30 0.0558 144 0.01 50
IV.ATFO.HHZ. 2021-01-13T22:25:27.07 0.6 undecidable manual S 260 0.0558 143 -0.11 49
IV.ATPI.EHZ. 2021-01-13T22:25:27.37 1.0 positive manual P 293 0.1934 95 0.01 24
IV.FRON.EHZ. 2021-01-13T22:25:26.62 0.6 undecidable manual P 22 0.1529 100 -0.05 49
IV.SSFR.HNN. 2021-01-13T22:25:26.11 0.3 undecidable manual P 58 0.1151 113 0.07 74
IV.ATPC.HNE. 2021-01-13T22:25:26.98 0.6 undecidable manual P 307 0.1736 96 -0.04 49
IV.FOSV.EHZ. 2021-01-13T22:25:26.03 1.0 positive manual P 135 0.116 113 -0.02 25
IV.MURB.HHZ. 2021-01-13T22:25:26.56 0.6 negative manual P 218 0.1439 102 0.04 49
IV.ATFO.HHZ. 2021-01-13T22:25:25.29 0.1 positive manual P 260 0.0558 143 0.03 100
IV.ATSC.EHN. 2021-01-13T22:25:25.38 0.3 undecidable manual P 30 0.0558 144 0.13 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:1.2 0.0002055 0.16 AML other m 2021-01-13T22:25:27.17
IV.ATFO.HHE. ML:1.1 0.000169 0.16 AML other m 2021-01-13T22:25:27.22
IV.MURB.HHN. ML:1.3 0.00016739555 0.2048 AML other m 2021-01-13T22:25:30.16
IV.MURB.HHE. ML:1.2 0.0001524838 0.2048 AML other m 2021-01-13T22:25:30.02
IV.FRON.EHN. ML:0.8 5.135E-5 1.32 AML other m 2021-01-13T22:25:30.87
IV.FRON.EHE. ML:0.6 2.949238E-5 0.064 AML other m 2021-01-13T22:25:29.70
IV.FOSV.EHE. ML:0.3 1.8279571E-5 0.1024 AML other m 2021-01-13T22:25:28.88
IV.FOSV.EHN. ML:0.3 2.053541E-5 0.0768 AML other m 2021-01-13T22:25:28.81
IV.MURB.HNE. ML:1.2 0.000129000575 0.2432 AML other m 2021-01-13T22:25:29.93
IV.MURB.HNN. ML:1.2 0.000136451165 0.3072 AML other m 2021-01-13T22:25:30.07
IV.PIEI.HHE. ML:0.3 1.4666413E-5 0.064 AML other m 2021-01-13T22:25:31.48
IV.NARO.HHE. ML:0.4 1.4938035E-5 0.0512 AML other m 2021-01-13T22:25:32.93
IV.NARO.HHN. ML:0.4 1.504059955E-5 0.064 AML other m 2021-01-13T22:25:33.03
IV.ARVD.HHE. ML:0.5 1.4113645E-5 0.0896 AML other m 2021-01-13T22:25:33.37
IV.ARVD.HHN. ML:0.3 1.09057955E-5 0.1024 AML other m 2021-01-13T22:25:33.04
IV.MPAG.EHE. ML:0.3 1.16335135E-5 0.4352 AML other m 2021-01-13T22:25:33.28
IV.MPAG.EHN. ML:0.3 8.664425E-6 0.1408 AML other m 2021-01-13T22:25:33.71
IV.MPAG.HNE. ML:1.4 0.000130088025 0.6784 AML other m 2021-01-13T22:25:31.52
IV.MPAG.HNN. ML:1.4 0.00012796959 0.7808 AML other m 2021-01-13T22:25:31.45
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