Earthquake with magnitude of ML 1.0 on date 28-08-2020 and time 01:30:04 (Italy) in region 5 km NW Visso (MC)

A magnitude ML 1.0 earthquake occured in region: 5 km NW Visso (MC), on

  • 27-08-2020 23:30:04 (UTC)
  • 28-08-2020 01:30:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9700, 13.0620 at 9 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
Visso MC 5 1107 1107
Monte Cavallo MC 6 145 1252
Ussita MC 7 444 1696
Fiordimonte MC 8 202 1898
Pieve Torina MC 8 1458 3356
Preci PG 10 724 4080
Pievebovigliana MC 11 866 4946
Fiastra MC 11 559 5505
Castelsantangelo sul Nera MC 11 281 5786
Acquacanina MC 11 121 5907
Muccia MC 13 915 6822
Bolognola MC 14 142 6964
Sellano PG 14 1079 8043
Serravalle di Chienti MC 14 1070 9113
Camerino MC 19 6974 16087
Norcia PG 20 4957 21044

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
57 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
97 Km S of Fano (60888 inhabitants)
99 Km NE of Viterbo (67173 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 1.0 2020-08-27
23:30:04
42.9702 13.0618 9 2020-08-27
23:40:21
Sala Sismica INGV-Roma 82393431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-27 23:30:04 ± 0.05
Latitude 42.9702 ± 0.0027
Longitude 13.0618 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82393431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 365
Semi-minor axis of confidence ellipse (meter) 138
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 31
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.37592
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 82393431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-27 23:40:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2020-08-27T23:30:24.70 3.0 undecidable manual S 0.4 0
IV.MNTT.EHZ. 2020-08-27T23:30:17.39 3.0 undecidable manual S -0.75 0
IV.ATCC.EHZ. 2020-08-27T23:30:12.22 1.0 negative manual P 305 41.7249 50 0.15 24
IV.GAVE.EHZ. 2020-08-27T23:30:10.79 0.1 undecidable manual P 204 33.744 50 -0.05 100
IV.MC2.EHZ. 2020-08-27T23:30:09.39 0.3 undecidable manual S 122 12.1767 127 0.06 78
IV.CESI.HHZ. 2020-08-27T23:30:09.67 0.3 undecidable manual S 287 13.3755 125 0.03 78
IV.MMO1.EHZ. 2020-08-27T23:30:08.96 1.0 undecidable manual P 110 22.8549 112 0.01 26
IV.FDMO.HHZ. 2020-08-27T23:30:08.08 0.3 undecidable manual S 16 7.6812 141 -0.1 78
IV.MC2.EHZ. 2020-08-27T23:30:07.26 1.0 undecidable manual P 122 12.1767 127 0.18 25
IV.CESI.HHZ. 2020-08-27T23:30:07.29 0.3 negative manual P 287 13.3755 125 0.03 78
IV.NRCA.HHZ. 2020-08-27T23:30:07.52 0.6 undecidable manual P 164 15.7731 121 -0.14 51
IV.FDMO.HHZ. 2020-08-27T23:30:06.46 0.6 undecidable manual P 16 7.6812 141 0.05 52
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.9 0.00012385 0.24 AML other m 2020-08-27T23:30:08.34
IV.FDMO.HHN. ML:1.1 0.0002065 0.16 AML other m 2020-08-27T23:30:08.35
IV.CESI.HHN. ML:1.2 0.00017199999999999998 1.76 AML other m 2020-08-27T23:30:09.01
IV.CESI.HHE. ML:0.8 0.0000724 0.74 AML other m 2020-08-27T23:30:10.99
IV.NRCA.HHN. ML:1.0 0.00010400000000000001 0.14 AML other m 2020-08-27T23:30:10.66
IV.NRCA.HHE. ML:1.0 0.00008295 0.1 AML other m 2020-08-27T23:30:11.14
IV.GAVE.EHE. ML:1.0 0.0000472 0.68 AML other m 2020-08-27T23:30:16.74
IV.GAVE.EHN. ML:1.0 0.00004625 0.82 AML other m 2020-08-27T23:30:16.85
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