Earthquake with magnitude of ML 1.5 on date 07-07-2020 and time 12:05:14 (Italy) in region 1 km E Massa Martana (PG)

A magnitude ML 1.5 earthquake occured in region: 1 km E Massa Martana (PG), on

  • 07-07-2020 10:05:14 (UTC)
  • 07-07-2020 12:05:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.78, 12.54 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Massa Martana PG 1 3770 3770
Giano dell'Umbria PG 7 3846 7616
Acquasparta TR 10 4778 12394
Todi PG 11 16851 29245
Castel Ritaldi PG 12 3278 32523
Gualdo Cattaneo PG 15 6155 38678
Montecastrilli TR 15 5022 43700
Collazzone PG 15 3473 47173
Montefalco PG 16 5679 52852
Avigliano Umbro TR 17 2558 55410
Fratta Todina PG 17 1839 57249
Monte Castello di Vibio PG 17 1567 58816
Spoleto PG 17 38218 97034
Bevagna PG 18 5081 102115
San Gemini TR 18 5018 107133
Campello sul Clitunno PG 20 2442 109575

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SW of Foligno (57155 inhabitants)
26 Km NW of Terni (111501 inhabitants)
39 Km SE of Perugia (166134 inhabitants)
54 Km NE of Viterbo (67173 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
88 Km N of Guidonia Montecelio (88673 inhabitants)
93 Km N of Tivoli (56533 inhabitants)
93 Km SE of Arezzo (99543 inhabitants)
96 Km W of Teramo (54892 inhabitants)
98 Km NE of Civitavecchia (52991 inhabitants)
99 Km N of Roma (2864731 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
Reviewed
Rev100
ML 1.5 2020-07-07
10:05:14
42.78 12.54 8 2020-07-07
10:17:53
Sala Sismica INGV-Roma 80855811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-07 10:05:14 ± 0.09
Latitude 42.78 ± 0.00
Longitude 12.54 ± 0.01
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80855811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 611
Semi-minor axis of confidence ellipse (meter) 510
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 610
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.57736
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 80855811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-07 10:17:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IFIL.HHZ. 2020-07-07T10:07:01.27 3.0 undecidable manual Sn -9.99 0
IV.ORZI.HHZ. 2020-07-07T10:06:54.65 3.0 undecidable manual Sg 17.59 0
IV.EUCT.HNZ. 2020-07-07T10:06:51.72 3.0 undecidable manual Sg 9.28 0
IV.ACATE.EHZ. 2020-07-07T10:06:33.33 3.0 undecidable manual Pn -7.17 0
OT.OT05.EHZ. 2020-07-07T10:06:26.58 3.0 undecidable manual Sn 1.55 0
CH.FUORN.HHZ. 2020-07-07T10:06:23.51 3.0 positive manual Pg 9.89 0
CR.STON.BHZ. 2020-07-07T10:06:22.68 3.0 negative manual Pg 11.86 0
CH.MUGIO.HHZ. 2020-07-07T10:06:13.28 3.0 undecidable manual Pn 1.8 0
GU.CANO.HHZ. 2020-07-07T10:06:07.44 3.0 undecidable manual Pg 3.85 0
IV.PZUN.HHZ. 2020-07-07T10:06:04.25 3.0 undecidable manual Pn 0.58 0
IV.SEI.HHZ. 2020-07-07T10:05:59.49 3.0 undecidable manual Sg 3.72 0
IV.PTRJ.HNZ. 2020-07-07T10:05:50.40 3.0 undecidable manual Pg 3.16 0
IV.RIBO.EHZ.01 2020-07-07T10:05:42.90 3.0 undecidable manual Sn -2.86 0
IV.CSP1.EHZ. 2020-07-07T10:05:34.88 0.3 undecidable manual S 57 0.5774 50 0.32 64
IV.MC2.EHZ. 2020-07-07T10:05:32.55 0.3 undecidable manual S 74 0.4928 50 0.5 63
IV.NRCA.HHZ. 2020-07-07T10:05:29.87 0.3 undecidable manual S 82 0.4236 50 -0.13 69
IV.RIBO.EHZ.01 2020-07-07T10:05:28.56 3.0 negative manual Pn -3.24 0
IV.CESI.HNZ. 2020-07-07T10:05:27.56 0.3 undecidable manual S 50 0.3489 50 -0.22 68
IV.CSP1.EHZ. 2020-07-07T10:05:25.89 0.1 undecidable manual P 57 0.5774 50 -0.15 89
IV.SACS.HHE. 2020-07-07T10:05:24.37 0.1 undecidable manual P 279 0.4676 50 0.21 89
IV.MC2.EHZ. 2020-07-07T10:05:24.49 0.1 undecidable manual P 74 0.4928 50 -0.1 91
IV.NRCA.HHZ. 2020-07-07T10:05:23.04 0.1 undecidable manual P 82 0.4236 50 -0.37 87
IV.ATTE.HHZ. 2020-07-07T10:05:23.67 0.6 undecidable manual P 342 0.4398 50 -0.02 47
IV.GAVE.EHN. 2020-07-07T10:05:21.13 0.3 undecidable manual P 108 0.2734 105 0.42 67
IV.CESI.HNZ. 2020-07-07T10:05:21.94 0.1 undecidable manual P 50 0.3489 50 -0.18 92
IV.CESX.HHZ. 2020-07-07T10:05:21.45 0.6 undecidable manual S 169 0.1745 114 -0.26 47
IV.ARRO.EHZ. 2020-07-07T10:05:20.59 0.3 undecidable manual P 140 0.259 106 0.18 70
IV.ASSB.HHE. 2020-07-07T10:05:20.77 0.1 undecidable manual P 18 0.277 105 -0.01 97
IV.CESX.HHZ. 2020-07-07T10:05:18.52 0.3 undecidable manual P 169 0.1745 114 -0.1 73
IV.MOMA.HNZ. 2020-07-07T10:05:17.44 0.3 undecidable manual S 41 0.0324 157 -0.13 74
IT.GNU.HGN. 2020-07-07T10:05:17.56 0.3 undecidable manual S 41 0.0324 157 -0.02 76
IT.GNU.HGN. 2020-07-07T10:05:16.31 0.1 undecidable manual P 41 0.0324 157 0.08 100
IV.MOMA.HNZ. 2020-07-07T10:05:16.32 0.1 undecidable manual P 41 0.0324 157 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHE. ML:1.2 0.000117713885 0.2752 AML other m 2020-07-07T10:05:22.07
IV.CESX.HHN. ML:1.4 0.00020156765 0.3392 AML other m 2020-07-07T10:05:21.64
IV.NRCA.HHE. ML:1.6 0.000119710965 0.1344 AML other m 2020-07-07T10:05:30.10
IV.NRCA.HHN. ML:1.4 7.298941E-5 0.1792 AML other m 2020-07-07T10:05:30.34
IV.NRCA.HNE. ML:1.6 0.0001274212 0.2048 AML other m 2020-07-07T10:05:29.93
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