Earthquake with magnitude of ML 1.0 on date 07-08-2020 and time 23:49:17 (UTC) in region 3 km SW Fiastra (MC)

A magnitude ML 1.0 earthquake occured in region: 3 km SW Fiastra (MC), on

  • 07-08-2020 23:49:17 (UTC)
  • 08-08-2020 01:49:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.02, 13.13 at 8 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
Fiastra MC 3 559 559
Fiordimonte MC 4 202 761
Acquacanina MC 4 121 882
Pievebovigliana MC 6 866 1748
Pieve Torina MC 7 1458 3206
Ussita MC 9 444 3650
Bolognola MC 9 142 3792
Muccia MC 10 915 4707
Visso MC 10 1107 5814
Monte Cavallo MC 11 145 5959
Camerino MC 14 6974 12933
Castelsantangelo sul Nera MC 14 281 13214
Sarnano MC 14 3264 16478
Cessapalombo MC 15 512 16990
Serravalle di Chienti MC 15 1070 18060
Caldarola MC 15 1823 19883
Camporotondo di Fiastrone MC 17 563 20446
Preci PG 17 724 21170
Gualdo MC 18 815 21985
Serrapetrona MC 18 966 22951
San Ginesio MC 18 3498 26449
Belforte del Chienti MC 18 1886 28335
Amandola FM 19 3629 31964
Montefortino FM 20 1178 33142

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
61 Km E of Perugia (166134 inhabitants)
62 Km NW of Teramo (54892 inhabitants)
64 Km NE of Terni (111501 inhabitants)
74 Km SW of Ancona (100861 inhabitants)
78 Km N of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 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 1.0 2020-08-07
23:49:17
43.02 13.13 8 2020-08-08
00:02:48
Sala Sismica INGV-Roma 81749441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-07 23:49:17 ± 0.11
Latitude 43.02 ± 0.00
Longitude 13.13 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81749441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 487
Semi-minor axis of confidence ellipse (meter) 79
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 251
Circular confidence region, given by single value of horizontal uncertainty (meter) 490
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.03327
Epicentral distance of station farthest from the epicenter (degree) 0.34354
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 81749441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-08 00:02:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2020-08-07T23:49:30.67 0.6 undecidable manual S 274 0.3435 50 0 48
IV.EL6.EHZ. 2020-08-07T23:49:29.40 0.6 undecidable manual S 356 0.3085 103 -0.1 47
IV.MF5.EHZ. 2020-08-07T23:49:28.40 0.6 undecidable manual S 98 0.2446 106 1.27 31
IV.NRCA.HHZ. 2020-08-07T23:49:25.44 0.6 undecidable manual S 183 0.188 111 0.4 45
IV.ASSB.HHZ. 2020-08-07T23:49:24.88 0.3 undecidable manual P 274 0.3435 50 -0.14 70
IV.MML1.HNE. 2020-08-07T23:49:24.08 0.3 undecidable manual S 309 0.1466 116 0.51 67
IV.MMO1.EHZ. 2020-08-07T23:49:24.69 0.6 undecidable manual S 130 0.1898 110 -0.42 45
IV.EL6.EHZ. 2020-08-07T23:49:24.04 0.1 undecidable manual P 356 0.3085 103 -0.31 90
IV.MF5.EHZ. 2020-08-07T23:49:23.39 0.1 undecidable manual P 98 0.2446 106 0.41 89
IV.PF6.EHN. 2020-08-07T23:49:22.92 0.6 undecidable manual S 23 0.1259 119 0.05 49
IT.MTCL.HGN. 2020-08-07T23:49:22.31 0.6 undecidable manual S 254 0.098 126 0.36 46
IV.MC2.EHZ. 2020-08-07T23:49:22.58 0.6 undecidable manual S 158 0.1187 121 -0.05 49
IV.MMO1.EHZ. 2020-08-07T23:49:21.49 0.1 undecidable manual P 130 0.1898 110 -0.32 92
IV.CSP1.EHZ. 2020-08-07T23:49:21.62 0.6 undecidable manual S 39 0.0899 128 -0.1 49
IV.NRCA.HHZ. 2020-08-07T23:49:21.54 0.1 undecidable manual P 183 0.188 111 -0.24 94
IV.FEMA.HNN. 2020-08-07T23:49:21.76 0.6 undecidable manual S 224 0.0818 131 0.28 47
IV.MML1.HNE. 2020-08-07T23:49:21.10 0.1 undecidable manual P 309 0.1466 116 0.17 96
IV.PF6.EHN. 2020-08-07T23:49:20.59 0.1 undecidable manual P 23 0.1259 119 0.07 98
IV.MC2.EHZ. 2020-08-07T23:49:20.26 0.1 undecidable manual P 158 0.1187 121 -0.12 97
IV.FEMA.HNN. 2020-08-07T23:49:19.85 0.1 undecidable manual P 224 0.0818 131 0.13 98
IV.FDMO.HHE. 2020-08-07T23:49:19.69 0.6 undecidable manual S 297 0.0333 155 -0.62 44
IT.MTCL.HGN. 2020-08-07T23:49:19.86 0.3 undecidable manual P 254 0.098 126 -0.13 73
IV.CSP1.EHZ. 2020-08-07T23:49:19.84 0.1 undecidable manual P 39 0.0899 128 -0.01 100
IV.FDMO.HHE. 2020-08-07T23:49:18.74 0.1 undecidable manual P 297 0.0333 155 -0.3 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:0.8 0.00010075 0.26 AML other m 2020-08-07T23:49:22.38
IV.CSP1.EHE. ML:1 0.000142 0.46 AML other m 2020-08-07T23:49:22.62
IV.NRCA.HHN. ML:1 8.225E-5 0.12 AML other m 2020-08-07T23:49:26.75
IV.NRCA.HHE. ML:1 8.18E-5 1.12 AML other m 2020-08-07T23:49:27.42
IV.ASSB.HHN. ML:1.1 5.1E-5 0.16 AML other m 2020-08-07T23:49:31.01
IV.ASSB.HHE. ML:1 3.345E-5 1.52 AML other m 2020-08-07T23:49:31.80
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