Earthquake with magnitude of ML 1.1 on date 31-03-2020 and time 20:49:40 (Italy) in region 4 km SE Serravalle di Chienti (MC)

A magnitude ML 1.1 earthquake occured in region: 4 km SE Serravalle di Chienti (MC), on

  • 31-03-2020 18:49:40 (UTC)
  • 31-03-2020 20:49:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.04, 12.98 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 5 145 1215
Pieve Torina MC 6 1458 2673
Muccia MC 7 915 3588
Fiordimonte MC 9 202 3790
Pievebovigliana MC 9 866 4656
Sefro MC 12 422 5078
Camerino MC 13 6974 12052
Fiastra MC 15 559 12611
Visso MC 15 1107 13718
Pioraco MC 16 1134 14852
Acquacanina MC 16 121 14973
Ussita MC 17 444 15417
Sellano PG 17 1079 16496
Nocera Umbra PG 17 5839 22335
Fiuminata MC 17 1402 23737
Valtopina PG 18 1398 25135
Preci PG 18 724 25859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
59 Km NE of Terni (111501 inhabitants)
73 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)
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
Rev 100 ML 1.1 2020-03-31
18:49:40
43.04 12.98 14 2020-03-31
19:05:25
Sala Sismica INGV-Roma 77732201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-31 18:49:40 ± 0.05
Latitude 43.04 ± 0.00
Longitude 12.98 ± 0.00
Depth (km) 14 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77732201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 290
Semi-minor axis of confidence ellipse (meter) 143
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 81
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.04676
Epicentral distance of station farthest from the epicenter (degree) 0.30487
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 77732201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-31 19:05:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-03-31T18:49:51.66 0.3 undecidable manual S 17 0.3049 97 0.08 70
IV.ATCC.HNZ. 2020-03-31T18:49:51.21 0.6 undecidable manual S 301 0.2869 97 0.16 46
IV.NRCA.HHZ. 2020-03-31T18:49:49.33 0.3 undecidable manual S 154 0.2275 101 0.01 73
IV.SNTG.HHZ. 2020-03-31T18:49:48.99 0.6 undecidable manual S 353 0.2185 102 -0.06 48
IV.PF6.EHZ. 2020-03-31T18:49:47.85 0.6 undecidable manual S 58 0.1871 106 -0.3 46
IV.CSP1.EHZ. 2020-03-31T18:49:47.96 0.3 undecidable manual S 72 0.1745 108 0.16 71
IV.EL6.EHZ. 2020-03-31T18:49:46.66 0.1 undecidable manual P 17 0.3049 97 -0.05 94
IV.ATCC.HNZ. 2020-03-31T18:49:46.34 0.1 undecidable manual P 301 0.2869 97 -0.06 94
IV.CESI.HHZ. 2020-03-31T18:49:45.10 0.6 undecidable manual S 238 0.063 146 0 50
IV.SNTG.HHZ. 2020-03-31T18:49:45.14 0.1 undecidable manual P 353 0.2185 102 -0.11 95
IV.FDMO.HHZ. 2020-03-31T18:49:45.42 0.6 undecidable manual S 91 0.08 138 -0.01 50
IV.NRCA.HHZ. 2020-03-31T18:49:45.40 0.3 undecidable manual P 154 0.2275 101 -0.01 72
IV.MML1.HNZ. 2020-03-31T18:49:45.24 0.6 undecidable manual S 357 0.0755 140 -0.09 49
IV.CSP1.EHZ. 2020-03-31T18:49:44.64 0.6 undecidable manual P 72 0.1745 108 0.12 48
IV.PF6.EHZ. 2020-03-31T18:49:44.65 0.1 undecidable manual P 58 0.1871 106 -0.08 96
IV.MC2.EHZ. 2020-03-31T18:49:44.90 0.6 undecidable manual P 129 0.1996 104 -0.04 48
IT.MTCL.HGZ. 2020-03-31T18:49:44.53 0.6 undecidable manual S 160 0.0468 154 -0.34 47
IV.CESI.HHZ. 2020-03-31T18:49:43.11 0.1 undecidable manual P 238 0.063 146 0.14 97
IV.FDMO.HHZ. 2020-03-31T18:49:43.27 0.1 undecidable manual P 91 0.08 138 0.12 97
IV.MML1.HNZ. 2020-03-31T18:49:43.20 0.1 undecidable manual P 357 0.0755 140 0.1 98
IT.MTCL.HGZ. 2020-03-31T18:49:42.84 0.1 undecidable manual P 160 0.0468 154 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.2 0.0001775 0.38 AML other m 2020-03-31T18:48:54.36
IV.CESI.HHE. ML:1.2 0.00017 0.2 AML other m 2020-03-31T18:48:54.25
IV.FDMO.HHN. ML:1.1 0.0001248 0.12 AML other m 2020-03-31T18:48:54.54
IV.FDMO.HHE. ML:1 0.0001033 0.14 AML other m 2020-03-31T18:48:54.52
IV.NRCA.HHE. ML:1.1 6.255E-5 0.6 AML other m 2020-03-31T18:48:58.77
IV.NRCA.HHN. ML:1.3 0.00010305 0.1 AML other m 2020-03-31T18:48:58.51
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