Earthquake with magnitude of ML 0.8 on date 16-01-2021 and time 00:32:27 (UTC) in region 4 km SE Sefro (MC)

A magnitude ML 0.8 earthquake occured in region: 4 km SE Sefro (MC), on

  • 16-01-2021 00:32:27 (UTC)
  • 16-01-2021 01:32:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.13, 12.99 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
Sefro MC 4 422 422
Pioraco MC 6 1134 1556
Serravalle di Chienti MC 7 1070 2626
Muccia MC 7 915 3541
Camerino MC 7 6974 10515
Fiuminata MC 8 1402 11917
Pieve Torina MC 10 1458 13375
Pievebovigliana MC 11 866 14241
Castelraimondo MC 11 4587 18828
Fiordimonte MC 13 202 19030
Gagliole MC 14 620 19650
Esanatoglia MC 14 2034 21684
Monte Cavallo MC 15 145 21829
Matelica MC 15 9981 31810
Nocera Umbra PG 16 5839 37649
Fiastra MC 17 559 38208
Serrapetrona MC 17 966 39174
Acquacanina MC 19 121 39295
San Severino Marche MC 19 12726 52021
Caldarola MC 20 1823 53844

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NE of Foligno (57155 inhabitants)
49 Km E of Perugia (166134 inhabitants)
69 Km NE of Terni (111501 inhabitants)
70 Km SW of Ancona (100861 inhabitants)
78 Km NW of Teramo (54892 inhabitants)
80 Km S of Fano (60888 inhabitants)
88 Km S of Pesaro (94582 inhabitants)
92 Km NW of L'Aquila (69753 inhabitants)
97 Km E of Arezzo (99543 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 0.8 2021-01-16
00:32:27
43.13 12.99 13 2021-01-16
00:39:39
Sala Sismica INGV-Roma 86286721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-16 00:32:27 ± 0.53
Latitude 43.13 ± 0.03
Longitude 12.99 ± 0.03
Depth (km) 13 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86286721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3001
Semi-minor axis of confidence ellipse (meter) 1764
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 141
Circular confidence region, given by single value of horizontal uncertainty (meter) 3000
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 175
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.21943
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 86286721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-16 00:39:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CRJA.HHZ. 2021-01-16T00:34:15.21 3.0 undecidable manual Sn -4.86 0
IV.MTGR.HHZ. 2021-01-16T00:33:37.40 3.0 positive manual Pg 13.65 0
IV.MILZ.HHZ. 2021-01-16T00:33:29.51 3.0 positive manual Pg 9.97 0
IV.PTRJ.HNZ. 2021-01-16T00:33:03.87 3.0 undecidable manual Sg 6.29 0
IV.VITU.HHZ. 2021-01-16T00:33:01.79 3.0 undecidable manual Sn -0.12 0
IV.ATFO.HHZ. 2021-01-16T00:32:52.35 3.0 undecidable manual Sn -0.66 0
IV.IFOR.HHZ. 2021-01-16T00:32:44.77 3.0 undecidable manual Pn -0.33 0
IV.PTRJ.HNZ. 2021-01-16T00:32:43.17 3.0 undecidable manual Pg 4.9 0
IV.VIVA.HHZ. 2021-01-16T00:32:36.38 3.0 undecidable manual P 0.62 0
IV.EL6.EHZ. 2021-01-16T00:32:36.57 0.6 undecidable manual S 22 0.2194 100 0.22 38
IV.CSP1.EHZ. 2021-01-16T00:32:34.45 0.6 undecidable manual S 102 0.1619 108 -0.24 48
IV.CESI.HHZ. 2021-01-16T00:32:33.72 0.3 undecidable manual S 207 0.1358 115 -0.23 74
IV.FDMO.HHZ. 2021-01-16T00:32:32.76 0.3 undecidable manual S 141 0.1151 122 -0.67 76
IV.EL6.EHZ. 2021-01-16T00:32:32.49 0.3 positive manual P 22 0.2194 100 -0.05 62
IV.CESI.HHZ. 2021-01-16T00:32:31.02 0.1 negative manual P 207 0.1358 115 -0.14 100
IV.CSP1.EHZ. 2021-01-16T00:32:31.43 0.6 undecidable manual P 102 0.1619 108 -0.15 49
IV.FDMO.HHZ. 2021-01-16T00:32:30.43 1.0 undecidable manual P 141 0.1151 122 -0.43 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.8 6.31E-5 0.2 AML other m 2021-01-16T00:32:32.99
IV.FDMO.HHE. ML:0.8 5.58E-5 1.46 AML other m 2021-01-16T00:32:33.08
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