Earthquake with magnitude of ML 0.9 on date 17-01-2021 and time 17:56:45 (UTC) in region 4 km E Monte Cavallo (MC)

A magnitude ML 0.9 earthquake occured in region: 4 km E Monte Cavallo (MC), on

  • 17-01-2021 17:56:45 (UTC)
  • 17-01-2021 18:56:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.98, 13.05 at 11 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
Monte Cavallo MC 4 145 145
Visso MC 6 1107 1252
Pieve Torina MC 7 1458 2710
Fiordimonte MC 7 202 2912
Ussita MC 9 444 3356
Pievebovigliana MC 10 866 4222
Fiastra MC 11 559 4781
Preci PG 11 724 5505
Muccia MC 12 915 6420
Acquacanina MC 12 121 6541
Serravalle di Chienti MC 13 1070 7611
Castelsantangelo sul Nera MC 13 281 7892
Sellano PG 14 1079 8971
Bolognola MC 15 142 9113
Camerino MC 18 6974 16087

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
55 Km E of Perugia (166134 inhabitants)
57 Km NE of Terni (111501 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
96 Km S of Fano (60888 inhabitants)
99 Km NE of Viterbo (67173 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 2021-01-17
17:56:45
42.98 13.05 11 2021-01-17
18:05:04
Sala Sismica INGV-Roma 86334421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-17 17:56:45 ± 0.05
Latitude 42.98 ± 0.00
Longitude 13.05 ± 0.00
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86334421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 349
Semi-minor axis of confidence ellipse (meter) 241
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 354
Circular confidence region, given by single value of horizontal uncertainty (meter) 350
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.22033
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.4
Num. used stations 13
Type of magnitude ML
Reference to an origin 86334421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-17 18:05:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
ST.CARE.EHZ. 2021-01-17T17:58:26.03 3.0 undecidable manual Sg 7.62 0
IV.ZONE.HHZ. 2021-01-17T17:58:18.21 3.0 undecidable manual Sg 10.05 0
MN.BNI.HHZ. 2021-01-17T17:58:05.40 3.0 negative manual Pg 17.23 0
IV.SENA.HHZ. 2021-01-17T17:58:03.93 3.0 undecidable manual Sn -9.99 0
IV.CRJA.HHZ. 2021-01-17T17:58:00.59 3.0 positive manual Pn 2.37 0
IV.PIPA.HHZ. 2021-01-17T17:57:57.45 3.0 negative manual Pg 4.47 0
IV.VOBA.HNZ. 2021-01-17T17:57:56.14 3.0 undecidable manual Sn -6.14 0
IV.NDIM.HNZ. 2021-01-17T17:57:47.06 3.0 undecidable manual Sg 4.2 0
IV.PTRJ.HNZ. 2021-01-17T17:57:45.67 3.0 undecidable manual Sn -3.12 0
IV.CDRU.HHZ. 2021-01-17T17:57:41.39 3.0 undecidable manual Pg 9.26 0
ST.CARE.EHZ. 2021-01-17T17:57:34.74 3.0 negative manual Pn 0.33 0
IV.PTRJ.HNZ. 2021-01-17T17:57:23.25 3.0 undecidable manual Pg 5.48 0
IV.FIR.HHZ. 2021-01-17T17:57:11.70 3.0 undecidable manual S -5.6 0
IV.SENI.EHZ. 2021-01-17T17:56:56.58 3.0 positive manual P -0.07 0
IV.MNTT.EHZ. 2021-01-17T17:56:55.98 3.0 undecidable manual P 0
IV.MMO1.EHZ. 2021-01-17T17:56:54.09 0.3 undecidable manual S 111 0.2203 91 0.02 74
IV.RIBO.EHZ.01 2021-01-17T17:56:54.06 3.0 undecidable manual P -4.33 0
IV.ASSB.HHZ. 2021-01-17T17:56:52.40 3.0 undecidable manual P 0
IV.ASSB.HHZ. 2021-01-17T17:56:52.38 3.0 undecidable manual S 0
IV.CSP1.EHZ. 2021-01-17T17:56:52.28 0.3 undecidable manual S 46 0.161 92 -0.03 75
IV.RM33.HNZ. 2021-01-17T17:56:51.73 3.0 undecidable manual Pn -4.02 0
IV.MMO1.EHZ. 2021-01-17T17:56:50.23 0.1 undecidable manual P 111 0.2203 91 -0.04 98
IV.CESI.HHZ. 2021-01-17T17:56:50.79 0.3 undecidable manual S 284 0.107 111 0.05 75
IV.ARVD.HHZ. 2021-01-17T17:56:49.30 3.0 undecidable manual P -1.84 0
IV.FDMO.HHZ. 2021-01-17T17:56:49.60 0.3 undecidable manual S 28 0.0639 136 -0.08 75
IV.CSP1.EHZ. 2021-01-17T17:56:49.29 0.1 undecidable manual P 46 0.161 92 0.03 100
IV.CESI.HHZ. 2021-01-17T17:56:48.26 0.1 undecidable manual P 284 0.107 111 -0.09 100
IV.FDMO.HHZ. 2021-01-17T17:56:47.85 0.1 undecidable manual P 28 0.0639 136 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNN. ML:2.6 0.00106029595 1.0496 AML other m 2021-01-17T17:57:20.64
IV.RM33.HNE. ML:2.7 0.0012417145 0.6144 AML other m 2021-01-17T17:57:12.65
IV.PTRJ.HNE. ML:3.7 0.0012427772 0.1024 AML other m 2021-01-17T17:57:58.53
IV.PTRJ.HNN. ML:3.8 0.00148448235 0.192 AML other m 2021-01-17T17:57:58.53
ST.CARE.EHE. ML:5.6 0.020996585 0.0768 AML other m 2021-01-17T17:58:50.45
ST.CARE.EHN. ML:5.4 0.0139834745 0.0768 AML other m 2021-01-17T17:58:50.63
IV.FDMO.HHE. ML:0.3 3.055626E-5 0.0768 AML other m 2021-01-17T17:56:49.82
IV.FDMO.HHN. ML:0.5 4.7298415E-5 0.1152 AML other m 2021-01-17T17:56:49.70
IV.CESI.HNE. ML:1 0.000121721115 0.9728 AML other m 2021-01-17T17:56:51.12
IV.CESI.HNN. ML:1.1 0.00012462204 0.4992 AML other m 2021-01-17T17:57:00.44
IV.CESI.HHE. ML:0.4 2.55136E-5 1.4848 AML other m 2021-01-17T17:57:01.75
IV.CESI.HHN. ML:0.3 2.1490275E-5 0.1152 AML other m 2021-01-17T17:56:51.01
IV.CSP1.EHE. ML:1.1 9.67859E-5 2.4704 AML other m 2021-01-17T17:57:02.46
IV.CSP1.EHN. ML:1.2 0.000128689335 2.3936 AML other m 2021-01-17T17:56:48.58
IV.ARVD.HHE. ML:1 1.9602535E-5 1.2928 AML other m 2021-01-17T17:57:16.30
IV.ARVD.HHN. ML:1.1 2.328178E-5 1.3952 AML other m 2021-01-17T17:57:09.38
IV.RM33.EHE. ML:1.4 5.977148E-5 1.5232 AML other m 2021-01-17T17:57:15.32
IV.RM33.EHN. ML:1.3 4.63618E-5 1.28 AML other m 2021-01-17T17:57:18.76
IV.ASSB.HHE. ML:1.2 6.530379E-5 0.0512 AML other m 2021-01-17T17:56:52.50
IV.ASSB.HHN. ML:0.8 2.64297195E-5 0.0512 AML other m 2021-01-17T17:56:52.52
IV.RIBO.EHE.01 ML:2.4 9.7788325E-5 1.5744 AML other m 2021-01-17T17:57:27.20
IV.MNTT.EHN. ML:1.5 8.8685815E-5 0.1664 AML other m 2021-01-17T17:57:04.31
IV.MNTT.EHE. ML:1.9 0.00023388335 0.1664 AML other m 2021-01-17T17:57:04.39
IV.SENI.EHE. ML:1.8 8.8926445E-5 0.64 AML other m 2021-01-17T17:57:34.54
IV.SENI.EHN. ML:1.8 9.6798E-5 0.64 AML other m 2021-01-17T17:57:28.48
IV.SENI.HNE. ML:2.7 0.00066589795 0.1152 AML other m 2021-01-17T17:57:04.79
IV.SENI.HNN. ML:2.8 0.00091162385 0.2816 AML other m 2021-01-17T17:56:56.51
IV.PTRJ.HHN. ML:3.7 0.001369081 0.0896 AML other m 2021-01-17T17:58:06.68
IV.PTRJ.HHE. ML:3.1 0.00034495385 0.1024 AML other m 2021-01-17T17:57:52.43
ST.CARE.HNN. ML:4 0.0005476349 1.1776 AML other m 2021-01-17T17:58:33.35
ST.CARE.HNE. ML:4.2 0.00078978231 0.5888 AML other m 2021-01-17T17:58:05.22
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