Earthquake with magnitude of ML 0.9 on date 09-02-2020 and time 22:42:28 (Italy) in region 3 km SE Cerreto di Spoleto (PG)

A magnitude ML 0.9 earthquake occured in region: 3 km SE Cerreto di Spoleto (PG), on

  • 09-02-2020 21:42:28 (UTC)
  • 09-02-2020 22:42:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.81, 12.95 at 11 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
Cerreto di Spoleto PG 3 1075 1075
Vallo di Nera PG 8 364 1439
Sellano PG 10 1079 2518
Poggiodomo PG 10 117 2635
Cascia PG 11 3217 5852
Preci PG 11 724 6576
Sant'Anatolia di Narco PG 12 564 7140
Norcia PG 12 4957 12097
Campello sul Clitunno PG 14 2442 14539
Scheggino PG 14 461 15000
Monteleone di Spoleto PG 17 599 15599
Trevi PG 18 8469 24068
Visso MC 18 1107 25175
Spoleto PG 19 38218 63393
Castelsantangelo sul Nera MC 20 281 63674

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SE of Foligno (57155 inhabitants)
37 Km NE of Terni (111501 inhabitants)
57 Km SE of Perugia (166134 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
64 Km W of Teramo (54892 inhabitants)
81 Km NE of Viterbo (67173 inhabitants)
91 Km N of Guidonia Montecelio (88673 inhabitants)
94 Km N of Tivoli (56533 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 0.9 2020-02-09
21:42:28
42.81 12.95 11 2020-02-09
21:50:43
Sala Sismica INGV-Roma 76383731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-09 21:42:28 ± 0.06
Latitude 42.81 ± 0.00
Longitude 12.95 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76383731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 427
Semi-minor axis of confidence ellipse (meter) 248
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 108
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.11961
Epicentral distance of station farthest from the epicenter (degree) 0.29318
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 76383731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-09 21:50:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMO1.HNZ. 2020-02-09T21:42:39.96 0.3 undecidable manual S 71 0.2932 50 0.06 73
IV.FDMO.HHZ. 2020-02-09T21:42:38.63 0.3 undecidable manual S 24 0.2527 50 -0.04 74
IV.LNSS.HHZ. 2020-02-09T21:42:37.41 0.3 undecidable manual S 161 0.214 50 -0.14 73
IV.MC2.EHZ. 2020-02-09T21:42:37.63 0.3 undecidable manual S 59 0.2059 50 0.32 70
IV.CESI.HHZ. 2020-02-09T21:42:37.38 0.3 undecidable manual S 351 0.2014 50 0.22 72
IT.MTCL.HGZ. 2020-02-09T21:42:36.51 0.3 undecidable manual S 12 0.1916 50 -0.37 70
IV.MMO1.HNZ. 2020-02-09T21:42:35.18 0.6 undecidable manual P 71 0.2932 50 0.02 49
IV.GAVE.EHZ. 2020-02-09T21:42:34.63 0.3 undecidable manual S 199 0.1196 129 -0.03 76
IV.NRCA.HNZ. 2020-02-09T21:42:34.69 0.3 undecidable manual S 77 0.1259 128 -0.14 74
IV.FDMO.HHZ. 2020-02-09T21:42:34.37 0.3 positive manual P 24 0.2527 50 -0.09 73
IV.CESI.HHZ. 2020-02-09T21:42:33.57 0.1 positive manual P 351 0.2014 50 -0.01 100
IV.LNSS.HHZ. 2020-02-09T21:42:33.77 0.1 negative manual P 161 0.214 50 -0.03 99
IT.MTCL.HGZ. 2020-02-09T21:42:33.44 0.3 undecidable manual P 12 0.1916 50 0.01 75
IV.MC2.EHZ. 2020-02-09T21:42:33.73 0.3 undecidable manual P 59 0.2059 50 0.06 74
IV.GAVE.EHZ. 2020-02-09T21:42:32.30 0.1 positive manual P 199 0.1196 129 0.16 99
IV.NRCA.HNZ. 2020-02-09T21:42:32.29 0.3 undecidable manual P 77 0.1259 128 0.05 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HNE. ML:1.2 0.000106575152 0.8448 AML other m 2020-02-09T21:42:45.41
IV.GAVE.EHN. ML:1.2 0.00014384995 0.128 AML other m 2020-02-09T21:42:35.24
IV.GAVE.HNE. ML:1.4 0.00028332515 0.1408 AML other m 2020-02-09T21:42:34.96
IV.GAVE.HNN. ML:0.8 0.00018951925 0.9344 AML other m 2020-02-09T21:42:41.07
IV.CESI.HHE. ML:0.4 1.38488965E-5 0.0768 AML other m 2020-02-09T21:42:37.53
IV.CESI.HHN. ML:0.6 2.4075735E-5 0.2304 AML other m 2020-02-09T21:42:37.44
IV.CESI.HNN. ML:1.2 0.000112009005 0.5376 AML other m 2020-02-09T21:42:46.00
IV.LNSS.HHE. ML:0.8 3.716637E-5 0.1536 AML other m 2020-02-09T21:42:38.01
IV.LNSS.HHN. ML:0.6 2.594771E-5 0.1664 AML other m 2020-02-09T21:42:37.70
IV.FDMO.HHE. ML:0.8 3.333003E-5 0.1792 AML other m 2020-02-09T21:42:38.69
IV.FDMO.HHN. ML:0.6 2.1994645E-5 0.1152 AML other m 2020-02-09T21:42:38.96
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