Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 09-05-2020 and time 01:31:33 (Italy) in region 6 km W Serravalle di Chienti (MC)

A magnitude ML 0.5 earthquake occured in region: 6 km W Serravalle di Chienti (MC), on

  • 08-05-2020 23:31:33 (UTC)
  • 09-05-2020 01:31:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0490, 12.8850 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.

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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
Serravalle di Chienti MC 6 1070 1070
Nocera Umbra PG 10 5839 6909
Valtopina PG 11 1398 8307
Monte Cavallo MC 11 145 8452
Sefro MC 12 422 8874
Pieve Torina MC 14 1458 10332
Muccia MC 14 915 11247
Fiuminata MC 16 1402 12649
Pievebovigliana MC 16 866 13515
Pioraco MC 17 1134 14649
Fiordimonte MC 17 202 14851
Camerino MC 18 6974 21825
Foligno PG 18 57155 78980
Sellano PG 18 1079 80059
Spello PG 18 8645 88704

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Foligno (57155 inhabitants)
41 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
80 Km NW of Teramo (54892 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
88 Km NW of L'Aquila (69753 inhabitants)
89 Km S of Fano (60888 inhabitants)
94 Km SE of Arezzo (99543 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
96 Km S of Pesaro (94582 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 0.5 2020-05-08
23:31:33		 43.0493 12.8848 8 2020-05-08
23:38:18		 Sala Sismica INGV-Roma 78964151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-08 23:31:33 ± 0.07
Latitude 43.0493 ± 0.0045
Longitude 12.8848 ± 0.0037
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 78964151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 497
Semi-minor axis of confidence ellipse (meter) 186
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 8
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.04676
Epicentral distance of station farthest from the epicenter (degree) 0.35613
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 78964151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-08 23:38:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2020-05-08T23:31:47.55 0.3 undecidable manual S 115 39.5271 50 0.06 71
IV.ATCC.EHZ. 2020-05-08T23:31:43.09 0.3 undecidable manual S 307 24.9528 108 0.27 70
IV.MMO1.EHZ. 2020-05-08T23:31:41.47 0.1 undecidable manual P 115 39.5271 50 -0.21 92
IV.FDMO.HHZ. 2020-05-08T23:31:40.37 0.1 undecidable manual S 95 16.4724 116 0.28 95
IV.ASSB.HHZ. 2020-05-08T23:31:40.72 0.3 undecidable manual S 268 18.3705 113 0.03 74
IV.ATCC.EHZ. 2020-05-08T23:31:38.88 0.1 undecidable manual P 307 24.9528 108 -0.11 97
IV.MML1.HNE. 2020-05-08T23:31:37.97 0.1 undecidable manual S 45 9.9789 128 -0.2 97
IV.FDMO.HHZ. 2020-05-08T23:31:37.56 0.1 undecidable manual P 95 16.4724 116 0.15 97
IV.ASSB.HHZ. 2020-05-08T23:31:37.75 0.1 undecidable manual P 268 18.3705 113 -0.01 100
IV.MML1.HNE. 2020-05-08T23:31:36.24 0.1 undecidable manual P 45 9.9789 128 -0.06 100
IV.CESI.HHZ. 2020-05-08T23:31:36.86 0.3 undecidable manual S 162 5.1948 147 -0.16 74
IV.CESI.HHZ. 2020-05-08T23:31:35.65 0.3 undecidable manual P 162 5.1948 147 0 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.3 0.000019549999999999997 0.14 AML other m 2020-05-08T23:31:40.46
IV.FDMO.HHN. ML:0.4 0.00002425 0.4 AML other m 2020-05-08T23:31:40.92
IV.ASSB.HHN. ML:0.6 0.0000329 0.22 AML other m 2020-05-08T23:31:40.93
IV.ASSB.HHE. ML:0.5 0.0000236 1.44 AML other m 2020-05-08T23:31:43.95
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download