Earthquake with magnitude of ML 1.0 on date 31-03-2020 and time 10:02:51 (Italy) in region 8 km E Pietralunga (PG)

A magnitude ML 1.0 earthquake occured in region: 8 km E Pietralunga (PG), on

  • 31-03-2020 08:02:51 (UTC)
  • 31-03-2020 10:02:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.43, 12.54 at 12 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
Pietralunga PG 8 2111 2111
Cantiano PU 9 2245 4356
Gubbio PG 9 32216 36572
Scheggia e Pascelupo PG 11 1393 37965
Cagli PU 16 8731 46696
Costacciaro PG 16 1216 47912
Apecchio PU 17 1882 49794
Piobbico PU 18 2029 51823
Frontone PU 19 1300 53123
Montone PG 19 1680 54803
Sigillo PG 20 2404 57207
Serra Sant'Abbondio PU 20 1027 58234

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NE of Perugia (166134 inhabitants)
53 Km E of Arezzo (99543 inhabitants)
55 Km N of Foligno (57155 inhabitants)
60 Km SW of Fano (60888 inhabitants)
61 Km SW of Pesaro (94582 inhabitants)
70 Km S of Rimini (147750 inhabitants)
82 Km W of Ancona (100861 inhabitants)
82 Km SE of Cesena (96758 inhabitants)
97 Km SE of Forlì (117913 inhabitants)
97 Km N of Terni (111501 inhabitants)
98 Km E of Siena (53903 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 1.0 2020-03-31
08:02:51
43.43 12.54 12 2020-03-31
08:11:22
Sala Sismica INGV-Roma 77722171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-31 08:02:51 ± 0.05
Latitude 43.43 ± 0.00
Longitude 12.54 ± 0.00
Depth (km) 12 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77722171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 328
Semi-minor axis of confidence ellipse (meter) 292
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 337
Circular confidence region, given by single value of horizontal uncertainty (meter) 330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.17627
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 77722171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-31 08:11:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2020-03-31T08:02:59.03 0.1 undecidable manual S 89 0.1763 99 0.04 98
IV.FRON.EHZ. 2020-03-31T08:02:58.25 0.1 undecidable manual S 58 0.1601 102 -0.26 94
IV.TB02.DHZ.01 2020-03-31T08:02:57.10 0.3 undecidable manual S 237 0.1124 117 -0.08 74
IV.ATPC.HHZ. 2020-03-31T08:02:56.19 0.3 undecidable manual S 309 0.0764 134 -0.12 74
IV.ATSC.EHZ. 2020-03-31T08:02:56.89 0.3 undecidable manual S 94 0.107 119 -0.15 74
IV.ATFO.HHZ. 2020-03-31T08:02:56.00 0.3 undecidable manual S 160 0.0701 137 -0.17 75
IV.TB01.DHZ.01 2020-03-31T08:02:56.45 0.3 undecidable manual S 236 0.0908 127 -0.18 73
IV.ATPI.EHZ. 2020-03-31T08:02:56.75 0.3 undecidable manual S 280 0.1007 122 -0.13 73
IV.ATVO.HHZ. 2020-03-31T08:02:56.88 0.3 undecidable manual S 242 0.1088 119 -0.19 73
IV.ATBU.EHZ. 2020-03-31T08:02:55.87 0.1 undecidable manual S 9 0.0441 152 0.15 98
IV.FRON.EHZ. 2020-03-31T08:02:55.37 0.1 undecidable manual P 58 0.1601 102 -0.09 97
IV.SSFR.HHZ. 2020-03-31T08:02:55.71 0.1 undecidable manual P 89 0.1763 99 -0.02 99
IV.APEC.HHZ. 2020-03-31T08:02:55.44 3.0 undecidable manual P 0.11 0
IV.ATPI.EHZ. 2020-03-31T08:02:54.62 0.1 undecidable manual P 280 0.1007 122 0.11 99
IV.PIEI.HHZ. 2020-03-31T08:02:54.48 0.1 undecidable manual P 358 0.1034 121 -0.07 98
IV.TB02.DHZ.01 2020-03-31T08:02:54.82 0.1 undecidable manual P 237 0.1124 117 0.13 98
IV.ATVO.HHZ. 2020-03-31T08:02:54.68 0.1 undecidable manual P 242 0.1088 119 0.05 99
IV.ATPC.HHZ. 2020-03-31T08:02:54.25 0.1 undecidable manual P 309 0.0764 134 0.07 100
IV.ATBU.EHZ. 2020-03-31T08:02:54.06 0.1 undecidable manual P 9 0.0441 152 0.22 97
IV.ATSC.EHZ. 2020-03-31T08:02:54.62 0.1 undecidable manual P 94 0.107 119 0.01 100
IV.ATFO.HHZ. 2020-03-31T08:02:54.19 0.1 undecidable manual P 160 0.0701 137 0.09 98
IV.TB01.DHZ.01 2020-03-31T08:02:54.48 0.1 undecidable manual P 236 0.0908 127 0.11 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:1.2 0.00021166575 0.1344 AML other m 2020-03-31T08:02:56.13
IV.ATFO.HHE. ML:1 0.0001178288 0.1984 AML other m 2020-03-31T08:02:56.19
IV.PIEI.HHE. ML:0.9 8.8657105E-5 0.1984 AML other m 2020-03-31T08:02:57.60
IV.PIEI.HHN. ML:0.8 5.92343035E-5 0.0768 AML other m 2020-03-31T08:02:57.44
IV.ATPI.HNN. ML:1 0.00011607582 0.0896 AML other m 2020-03-31T08:02:57.01
IV.ATPI.EHE. ML:1 9.4500465E-5 0.1216 AML other m 2020-03-31T08:02:57.10
IV.ATPI.HNE. ML:1.1 0.0001420101 0.7232 AML other m 2020-03-31T08:02:57.45
IV.ATPI.EHN. ML:1.1 0.00013546575 0.1216 AML other m 2020-03-31T08:02:57.02
IV.ATVO.HHN. ML:1 0.000106474925 0.224 AML other m 2020-03-31T08:02:56.98
IV.ATVO.HHE. ML:0.8 6.370592E-5 0.2048 AML other m 2020-03-31T08:02:57.30
IV.FRON.EHN. ML:1.1 0.000106270985 0.0576 AML other m 2020-03-31T08:02:58.73
IV.FRON.EHE. ML:0.9 6.71471E-5 0.096 AML other m 2020-03-31T08:02:58.33
IV.APEC.HNN. ML:2 0.00079042495 0.9472 AML other m 2020-03-31T08:03:06.44
IV.APEC.HHE. ML:0.7 4.0810365E-5 0.256 AML other m 2020-03-31T08:02:58.69
IV.APEC.HNE. ML:1.9 0.00069398595 0.928 AML other m 2020-03-31T08:02:54.99
IV.APEC.HHN. ML:0.6 3.425286E-5 0.224 AML other m 2020-03-31T08:02:58.55
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