Earthquake with magnitude of ML 0.6 on date 18-01-2021 and time 20:11:41 (Italy) in region 4 km S Gualdo Tadino (PG)

A magnitude ML 0.6 earthquake occured in region: 4 km S Gualdo Tadino (PG), on

  • 18-01-2021 19:11:41 (UTC)
  • 18-01-2021 20:11:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2, 12.78 at 10 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
Gualdo Tadino PG 4 15208 15208
Nocera Umbra PG 9 5839 21047
Fossato di Vico PG 11 2840 23887
Fiuminata MC 12 1402 25289
Sefro MC 15 422 25711
Esanatoglia MC 15 2034 27745
Valfabbrica PG 15 3389 31134
Valtopina PG 15 1398 32532
Sigillo PG 16 2404 34936
Pioraco MC 17 1134 36070
Fabriano AN 19 31480 67550
Costacciaro PG 19 1216 68766
Assisi PG 19 28299 97065
Serravalle di Chienti MC 20 1070 98135
Matelica MC 20 9981 108116

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of Foligno (57155 inhabitants)
33 Km E of Perugia (166134 inhabitants)
71 Km N of Terni (111501 inhabitants)
75 Km S of Fano (60888 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
79 Km E of Arezzo (99543 inhabitants)
80 Km S of Pesaro (94582 inhabitants)
96 Km NW of Teramo (54892 inhabitants)
98 Km S of Rimini (147750 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 0.6 2021-01-18
19:11:41
43.2 12.78 10 2021-01-18
19:27:54
Sala Sismica INGV-Roma 86359591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-18 19:11:41 ± 0.06
Latitude 43.20 ± 0.00
Longitude 12.78 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86359591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 630
Semi-minor axis of confidence ellipse (meter) 357
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27429
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 86359591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-18 19:27:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APEC.HHZ. 2021-01-18T19:11:56.99 3.0 undecidable manual S -0.08 0
IV.FDMO.HHZ. 2021-01-18T19:11:52.78 0.3 undecidable manual S 125 0.2743 50 0.07 72
IV.MURB.HHZ. 2021-01-18T19:11:50.24 0.6 undecidable manual S 290 0.1979 114 0.12 48
IV.ASSB.HHZ. 2021-01-18T19:11:49.26 0.3 undecidable manual S 210 0.1763 116 -0.1 73
IV.FDMO.HHZ. 2021-01-18T19:11:48.12 0.1 undecidable manual P 125 0.2743 50 0.02 97
IV.ATCC.EHZ. 2021-01-18T19:11:47.16 0.3 undecidable manual S 264 0.1025 130 0.19 73
IV.MURB.HHZ. 2021-01-18T19:11:46.36 0.1 undecidable manual P 290 0.1979 114 -0.25 94
IV.ASSB.HHZ. 2021-01-18T19:11:46.12 0.1 undecidable manual P 210 0.1763 116 -0.05 98
IV.FOSV.EHZ. 2021-01-18T19:11:46.85 0.3 undecidable manual S 352 0.1007 131 -0.06 75
IV.FOSV.EHZ. 2021-01-18T19:11:44.79 0.1 undecidable manual P 352 0.1007 131 0.04 100
IV.ATCC.EHZ. 2021-01-18T19:11:44.91 0.1 undecidable manual P 264 0.1025 130 0.12 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHE. ML:0.9 5.218358E-5 0.2048 AML other m 2021-01-18T19:11:50.51
IV.MURB.HHN. ML:0.7 3.53441635E-5 0.3072 AML other m 2021-01-18T19:11:50.44
IV.FOSV.EHE. ML:0.2 1.8777075E-5 0.128 AML other m 2021-01-18T19:11:46.98
IV.FOSV.EHN. ML:0.5 3.8540405E-5 0.1152 AML other m 2021-01-18T19:11:47.01
IV.ATCC.EHE. ML:0.6 4.8297505E-5 0.192 AML other m 2021-01-18T19:11:47.35
IV.ATCC.EHN. ML:0.4 3.150302E-5 0.1408 AML other m 2021-01-18T19:11:47.28
IV.ASSB.HHE. ML:0.3 1.5061165E-5 0.2944 AML other m 2021-01-18T19:11:50.06
IV.ASSB.HHN. ML:0.3 1.2916385E-5 0.0896 AML other m 2021-01-18T19:11:49.51
IV.MURB.HNE. ML:1.2 0.000108239105 0.7168 AML other m 2021-01-18T19:11:48.49
IV.MURB.HNN. ML:1.1 9.177254E-5 0.64 AML other m 2021-01-18T19:12:00.10
IV.FDMO.HHE. ML:0.5 1.3786915E-5 1.0624 AML other m 2021-01-18T19:11:51.85
IV.FDMO.HHN. ML:0.5 1.3195415E-5 1.9072 AML other m 2021-01-18T19:12:01.02
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