Earthquake with magnitude of ML 1.0 on date 23-08-2020 and time 02:47:28 (Italy) in region 4 km S Serravalle di Chienti (MC)

A magnitude ML 1.0 earthquake occured in region: 4 km S Serravalle di Chienti (MC), on

  • 23-08-2020 00:47:28 (UTC)
  • 23-08-2020 02:47:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0410, 12.9650 at 14 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
Serravalle di Chienti MC 4 1070 1070
Monte Cavallo MC 6 145 1215
Pieve Torina MC 7 1458 2673
Muccia MC 8 915 3588
Pievebovigliana MC 10 866 4454
Fiordimonte MC 10 202 4656
Sefro MC 12 422 5078
Camerino MC 14 6974 12052
Pioraco MC 16 1134 13186
Fiastra MC 16 559 13745
Visso MC 16 1107 14852
Nocera Umbra PG 16 5839 20691
Fiuminata MC 17 1402 22093
Valtopina PG 17 1398 23491
Sellano PG 17 1079 24570
Acquacanina MC 17 121 24691
Ussita MC 18 444 25135
Preci PG 19 724 25859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
59 Km NE of Terni (111501 inhabitants)
74 Km NW of Teramo (54892 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
84 Km NW of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
97 Km S of Pesaro (94582 inhabitants)
99 Km NE of Viterbo (67173 inhabitants)
100 Km E of Arezzo (99543 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 2020-08-23
00:47:28
43.0408 12.9647 14 2020-08-23
00:51:15
Sala Sismica INGV-Roma 82245071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-23 00:47:28 ± 0.04
Latitude 43.0408 ± 0.0018
Longitude 12.9647 ± 0.0025
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82245071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 230
Semi-minor axis of confidence ellipse (meter) 80
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 217
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30487
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 82245071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-23 00:51:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESX.HHZ. 2020-08-23T00:47:45.59 3.0 undecidable manual S -1.86 0
IV.MMO1.EHZ. 2020-08-23T00:47:40.20 0.6 undecidable manual S 118 33.3444 98 0.17 48
IV.EL6.EHZ. 2020-08-23T00:47:40.25 0.6 undecidable manual S 19 33.8439 98 0.08 48
IV.ATCC.EHZ. 2020-08-23T00:47:39.61 0.6 undecidable manual S 301 30.747 99 0.25 47
IV.FOSV.EHZ. 2020-08-23T00:47:39.71 0.6 undecidable manual S 330 32.6451 98 -0.14 48
IV.NRCA.HHZ. 2020-08-23T00:47:38.08 0.6 undecidable manual S 152 26.0517 102 -0.03 49
IV.ASSB.HHZ. 2020-08-23T00:47:37.65 0.6 undecidable manual S 271 24.753 103 -0.14 48
IV.CSP1.EHZ. 2020-08-23T00:47:36.66 0.6 undecidable manual S 74 20.2686 109 0.03 50
IV.FOSV.EHZ. 2020-08-23T00:47:35.02 0.6 positive manual P 330 32.6451 98 -0.08 48
IV.EL6.EHZ. 2020-08-23T00:47:35.29 1.0 undecidable manual P 19 33.8439 98 0 24
IV.MMO1.EHZ. 2020-08-23T00:47:35.33 1.0 undecidable manual P 118 33.3444 98 0.12 24
IV.FDMO.HHZ. 2020-08-23T00:47:34.04 0.6 undecidable manual S 93 9.9789 135 -0.23 49
IV.NRCA.HHZ. 2020-08-23T00:47:34.05 0.1 undecidable manual P 152 26.0517 102 -0.05 98
IV.ATCC.EHZ. 2020-08-23T00:47:34.82 0.6 negative manual P 301 30.747 99 0 49
IV.CSP1.EHZ. 2020-08-23T00:47:33.44 1.0 undecidable manual P 74 20.2686 109 0.19 24
IV.CESI.HHZ. 2020-08-23T00:47:33.59 0.6 undecidable manual S 231 6.2937 150 -0.09 51
IV.ASSB.HHZ. 2020-08-23T00:47:33.85 0.6 undecidable manual P 271 24.753 103 -0.07 49
IV.CESI.HHZ. 2020-08-23T00:47:31.65 0.1 positive manual P 231 6.2937 150 0.11 100
IV.FDMO.HHZ. 2020-08-23T00:47:31.84 1.0 undecidable manual P 93 9.9789 135 -0.05 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.1 0.00015715000000000003 0.28 AML other m 2020-08-23T00:47:33.88
IV.CESI.HHE. ML:1.1 0.0001523 0.2 AML other m 2020-08-23T00:47:33.75
IV.FDMO.HHN. ML:1.1 0.0001315 0.16 AML other m 2020-08-23T00:47:34.24
IV.FDMO.HHE. ML:1.0 0.0000997 0.12 AML other m 2020-08-23T00:47:34.21
IV.NRCA.HHN. ML:1.2 0.00007285 0.12 AML other m 2020-08-23T00:47:38.21
IV.ASSB.HHN. ML:0.7 0.0000236 0.32 AML other m 2020-08-23T00:47:38.24
IV.ASSB.HHE. ML:0.6 0.000022 0.26 AML other m 2020-08-23T00:47:38.50
IV.NRCA.HHE. ML:0.9 0.00004685 0.76 AML other m 2020-08-23T00:47:38.54
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