Earthquake with magnitude of ML 2.0 on date 04-02-2021 and time 13:50:51 (Italy) in region 3 km SE Pietralunga (PG)

A magnitude ML 2.0 earthquake occured in region: 3 km SE Pietralunga (PG), on

  • 04-02-2021 12:50:51 (UTC)
  • 04-02-2021 13:50:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.421, 12.456 at 7 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 3 2111 2111
Montone PG 12 1680 3791
Gubbio PG 13 32216 36007
Cantiano PU 15 2245 38252
Apecchio PU 16 1882 40134
Umbertide PG 16 16681 56815
Scheggia e Pascelupo PG 17 1393 58208
Città di Castello PG 18 39913 98121
Piobbico PU 19 2029 100150

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Perugia (166134 inhabitants)
47 Km E of Arezzo (99543 inhabitants)
55 Km NW of Foligno (57155 inhabitants)
66 Km SW of Fano (60888 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
72 Km S of Rimini (147750 inhabitants)
82 Km S of Cesena (96758 inhabitants)
89 Km W of Ancona (100861 inhabitants)
91 Km E of Siena (53903 inhabitants)
95 Km SE of Forlì (117913 inhabitants)
97 Km N of Terni (111501 inhabitants)
Recent and historical seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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
Bulletin
Rev1000
ML 2.0 2021-02-04
12:50:51
43.421 12.4555 7 2021-07-12
16:55:00
Bollettino Sismico Italiano INGV 87775811
Reviewed
Rev100
ML 2.1 2021-02-04
12:50:51
43.4187 12.4568 7 2021-02-04
13:45:00
Sala Sismica INGV-Roma 86830731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-04 12:50:51 ± 0.04
Latitude 43.4210 ± 0.0018
Longitude 12.4555 ± 0.0025
Depth (km) 7 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87775811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 248
Semi-minor axis of confidence ellipse (meter) 159
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 36
Circular confidence region, given by single value of horizontal uncertainty (meter) 250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 26
Number of associated phases, regardless of their use for origin computation 82
Number of defining phases 81
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.82198
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 41
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 33
Type of magnitude ML
Reference to an origin 87775811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-05 11:13:10

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 38
Type of magnitude ML
Reference to an origin 86830731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-04 13:45:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.BRSN.EHZ. 2021-02-04T12:51:20.54 3.0 undecidable manual S -2.33 0
IV.MMO1.EHZ. 2021-02-04T12:51:19.86 0.1 undecidable manual S 129 0.822 50 0.83 68
IV.NRCA.HHZ. 2021-02-04T12:51:17.70 0.1 undecidable manual S 140 0.759 50 0.55 78
IV.MC2.EHZ. 2021-02-04T12:51:16.86 0.1 undecidable manual S 133 0.7383 50 0.31 83
IV.SACS.HHZ. 2021-02-04T12:51:15.56 0.3 undecidable manual S 215 0.6961 50 0.25 63
IV.CSP1.EHZ. 2021-02-04T12:51:14.24 0.1 undecidable manual S 121 0.6367 50 0.69 75
IV.ASQU.HHZ. 2021-02-04T12:51:13.16 0.1 undecidable manual S 308 0.6106 50 0.38 84
IV.MOMA.HHZ. 2021-02-04T12:51:13.60 0.1 undecidable manual S 172 0.6223 50 0.49 81
IV.FDMO.HHZ. 2021-02-04T12:51:12.82 0.1 undecidable manual S 130 0.5998 50 0.38 84
IV.MGAB.HHZ. 2021-02-04T12:51:11.66 0.1 undecidable manual S 206 0.5666 50 0.2 88
IV.CESI.HHZ. 2021-02-04T12:51:10.56 0.1 undecidable manual S 142 0.5288 50 0.21 88
IV.EL6.EHZ. 2021-02-04T12:51:08.86 0.1 undecidable manual S 101 0.4784 50 0.01 93
IV.SEF1.HNN. 2021-02-04T12:51:08.16 0.3 undecidable manual S 127 0.4506 50 0.12 68
IV.FIU1.HNZ. 2021-02-04T12:51:07.04 0.3 undecidable manual S 124 0.4173 50 0.01 70
IV.MMO1.EHZ. 2021-02-04T12:51:06.85 0.1 undecidable manual P 129 0.822 50 -0.44 79
IV.CPGN.EHZ. 2021-02-04T12:51:06.48 0.1 undecidable manual S 346 0.3921 50 0.18 91
IV.ASSB.HHZ. 2021-02-04T12:51:06.19 0.1 undecidable manual S 159 0.4065 50 -0.52 84
IV.CRE.HHZ. 2021-02-04T12:51:06.34 0.1 undecidable manual S 299 0.4155 50 -0.64 80
IV.MCIF.HNE. 2021-02-04T12:51:06.84 0.3 undecidable manual S 18 0.411 50 0 71
IV.GUMA.HHZ. 2021-02-04T12:51:06.05 0.1 undecidable manual P 119 0.7338 50 0.26 83
IV.MC2.EHZ. 2021-02-04T12:51:05.77 0.1 undecidable manual P 133 0.7383 50 -0.1 86
IV.NRCA.HHZ. 2021-02-04T12:51:05.67 0.1 undecidable manual P 140 0.759 50 -0.54 78
IV.CAFI.HHZ. 2021-02-04T12:51:05.07 0.1 undecidable manual S 256 0.3669 50 -0.48 86
IV.SACS.HHZ. 2021-02-04T12:51:04.78 0.1 undecidable manual P 215 0.6961 50 -0.37 82
IV.CSP1.EHZ. 2021-02-04T12:51:03.77 0.1 undecidable manual P 121 0.6367 50 -0.36 83
IV.MOMA.HHZ. 2021-02-04T12:51:03.92 0.1 undecidable manual P 172 0.6223 50 0.04 89
IV.ASQU.HHZ. 2021-02-04T12:51:03.92 0.1 undecidable manual P 308 0.6106 50 0.23 86
IV.MPAG.EHZ. 2021-02-04T12:51:03.04 0.1 undecidable manual S 47 0.3031 101 -0.13 94
IV.SSP9.EHZ. 2021-02-04T12:51:02.44 0.1 undecidable manual S 303 0.2806 102 0.13 94
IV.PE3.EHZ. 2021-02-04T12:51:02.11 0.3 undecidable manual S 6 0.2761 102 -0.06 72
IV.MGAB.HHZ. 2021-02-04T12:51:02.45 0.1 undecidable manual P 206 0.5666 50 -0.47 83
IV.PARC.HHZ. 2021-02-04T12:51:02.48 0.1 undecidable manual S 325 0.2761 102 0.31 91
IV.FDMO.HHZ. 2021-02-04T12:51:02.95 0.1 positive manual P 130 0.5998 50 -0.54 80
IV.ATCC.EHZ. 2021-02-04T12:51:02.39 0.1 undecidable manual S 150 0.2716 103 0.42 89
IV.CESI.HHZ. 2021-02-04T12:51:01.66 0.1 positive manual P 142 0.5288 50 -0.63 79
IV.SEF1.HNN. 2021-02-04T12:51:01.74 0.3 undecidable manual P 127 0.4506 50 0.79 56
IV.EL6.EHZ. 2021-02-04T12:51:00.77 0.1 undecidable manual P 101 0.4784 50 -0.65 79
IV.FIU1.HNZ. 2021-02-04T12:51:00.32 0.3 undecidable manual P 124 0.4173 50 -0.05 70
IV.SSFR.HHZ. 2021-02-04T12:51:00.63 0.1 undecidable manual S 86 0.2374 104 -0.09 96
IV.CPGN.EHZ. 2021-02-04T12:51:00.18 0.1 undecidable manual P 346 0.3921 50 0.24 90
IV.MCIF.HNE. 2021-02-04T12:51:00.52 0.3 undecidable manual P 18 0.411 50 0.26 67
IV.FRON.EHZ. 2021-02-04T12:50:59.95 0.1 undecidable manual S 64 0.2185 106 -0.06 97
IV.CAFI.HHZ. 2021-02-04T12:50:59.08 0.1 undecidable manual P 256 0.3669 50 -0.43 87
IV.ASSB.HHZ. 2021-02-04T12:50:59.37 0.1 undecidable manual P 159 0.4065 50 -0.81 75
IV.ATMC.EHZ. 2021-02-04T12:50:59.16 0.1 undecidable manual S 278 0.1925 108 0.12 96
IV.CRE.HHZ. 2021-02-04T12:50:59.83 0.1 undecidable manual P 299 0.4155 50 -0.51 84
IV.ATVA.EHZ. 2021-02-04T12:50:59.13 0.1 undecidable manual S 221 0.1889 108 0.23 94
IV.ATMI.HHZ. 2021-02-04T12:50:58.21 0.1 undecidable manual S 238 0.1619 111 0.3 93
IV.BADI.EHZ. 2021-02-04T12:50:58.88 0.1 undecidable manual S 300 0.1772 109 0.4 91
IV.CDCA.HNZ. 2021-02-04T12:50:58.81 0.3 undecidable manual S 283 0.1655 110 0.76 60
IV.MURB.HHZ. 2021-02-04T12:50:58.51 0.1 undecidable manual S 162 0.1655 110 0.44 90
IV.ATSC.EHZ. 2021-02-04T12:50:58.40 0.1 undecidable manual S 89 0.1673 110 0.26 94
IV.PARC.HHZ. 2021-02-04T12:50:57.24 0.1 undecidable manual P 325 0.2761 102 -0.32 90
IV.MPAG.EHZ. 2021-02-04T12:50:57.62 0.1 positive manual P 47 0.3031 101 -0.52 86
IV.PIEI.HHZ. 2021-02-04T12:50:57.20 0.1 undecidable manual S 27 0.1286 115 0.46 90
IV.ATCC.EHZ. 2021-02-04T12:50:57.25 0.1 undecidable manual P 150 0.2716 103 -0.2 93
IV.APEC.HHZ. 2021-02-04T12:50:57.49 0.1 undecidable manual S 349 0.1394 114 0.35 92
IV.SSP9.EHZ. 2021-02-04T12:50:57.44 0.1 positive manual P 303 0.2806 102 -0.2 93
IV.PE3.EHZ. 2021-02-04T12:50:57.92 0.3 undecidable manual P 6 0.2761 102 0.36 67
IT.UMBT.HGZ. 2021-02-04T12:50:57.22 0.3 undecidable manual S 215 0.1421 113 -0.01 74
IV.FRON.EHZ. 2021-02-04T12:50:56.02 0.1 positive manual P 64 0.2185 106 -0.29 92
IV.SSFR.HHZ. 2021-02-04T12:50:56.39 0.1 positive manual P 86 0.2374 104 -0.33 91
IV.ATLO.HNZ. 2021-02-04T12:50:56.32 0.1 undecidable manual S 198 0.1115 119 0.16 97
IV.CDCA.HNZ. 2021-02-04T12:50:55.35 0.3 undecidable manual P 283 0.1655 110 0.17 72
IV.MURB.HHZ. 2021-02-04T12:50:55.17 0.1 negative manual P 162 0.1655 110 -0.02 98
IV.ATMC.EHZ. 2021-02-04T12:50:55.64 0.1 undecidable manual P 278 0.1925 108 -0.11 96
IT.UMBT.HGZ. 2021-02-04T12:50:55.07 0.3 undecidable manual P 215 0.1421 113 0.36 69
IV.ATSC.EHZ. 2021-02-04T12:50:55.18 0.1 positive manual P 89 0.1673 110 -0.05 98
IV.ATVA.EHZ. 2021-02-04T12:50:55.80 0.1 positive manual P 221 0.1889 108 0.13 96
IV.ATMI.HHZ. 2021-02-04T12:50:55.40 0.1 undecidable manual P 238 0.1619 111 0.29 93
IV.BADI.EHZ. 2021-02-04T12:50:55.41 0.1 positive manual P 300 0.1772 109 -0.02 98
IV.ATLO.HNZ. 2021-02-04T12:50:54.08 0.1 negative manual P 198 0.1115 119 -0.01 100
IV.TB02.DHZ.01 2021-02-04T12:50:54.54 0.1 undecidable manual S 214 0.0603 135 -0.04 100
IV.PIEI.HHZ. 2021-02-04T12:50:54.45 0.1 positive manual P 27 0.1286 115 0.02 99
IV.ATPC.HNZ. 2021-02-04T12:50:54.65 0.1 undecidable manual S 1 0.0594 136 0.09 99
IV.APEC.HHZ. 2021-02-04T12:50:54.62 0.1 positive manual P 349 0.1394 114 -0.04 99
IV.ATPC.HNZ. 2021-02-04T12:50:53.12 0.1 positive manual P 1 0.0594 136 -0.04 100
IV.TB01.DHZ.01 2021-02-04T12:50:53.70 0.1 undecidable manual S 200 0.0423 146 -0.42 93
IV.TB02.DHZ.01 2021-02-04T12:50:53.14 0.1 undecidable manual P 214 0.0603 135 -0.04 100
IV.TB03.DHZ.01 2021-02-04T12:50:53.50 0.1 undecidable manual S 239 0.0378 148 -0.54 90
IV.TB03.DHZ.01 2021-02-04T12:50:52.59 0.1 positive manual P 239 0.0378 148 -0.28 96
IV.TB01.DHZ.01 2021-02-04T12:50:52.72 0.1 positive manual P 200 0.0423 146 -0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHE. ML:2.1 0.00132297215 0.1984 AML other m 2021-02-04T12:50:57.52
IV.APEC.HHN. ML:2.1 0.001255 0.14 AML other m 2021-02-04T12:50:57.94
IV.PIEI.HHN. ML:1.9 0.0009610323 0.1344 AML other m 2021-02-04T12:50:57.75
IV.ATMI.HHN. ML:1.8 0.0006399865 0.2752 AML other m 2021-02-04T12:50:58.36
IV.APEC.HNN. ML:2 0.0009710473 0.1792 AML other m 2021-02-04T12:50:57.94
IV.APEC.HNE. ML:2 0.00114038855 0.5248 AML other m 2021-02-04T12:50:57.87
IV.ATMI.HHE. ML:2.1 0.001232757 0.7808 AML other m 2021-02-04T12:50:58.76
IV.BADI.EHN. ML:2.1 0.00108233705 0.1792 AML other m 2021-02-04T12:50:59.04
IV.MURB.HNE. ML:2.8 0.006126333 0.2624 AML other m 2021-02-04T12:50:59.05
IV.MURB.HHE. ML:2.8 0.00645 0.26 AML other m 2021-02-04T12:50:59.06
IV.MURB.HNN. ML:2.4 0.002276609 0.3456 AML other m 2021-02-04T12:50:58.76
IV.MURB.HHN. ML:2.6 0.0031720435 0.3584 AML other m 2021-02-04T12:50:58.76
IV.BADI.EHE. ML:2.2 0.0012027465 0.1024 AML other m 2021-02-04T12:50:59.41
IV.FRON.EHN. ML:2 0.0006545408 0.2816 AML other m 2021-02-04T12:51:00.17
IV.FRON.EHE. ML:1.7 0.000344361 0.16 AML other m 2021-02-04T12:51:00.22
IV.SSFR.HHN. ML:2.3 0.00128 0.26 AML other m 2021-02-04T12:51:00.86
IV.SSFR.HNN. ML:2.4 0.001475 0.28 AML other m 2021-02-04T12:51:00.86
IV.SSFR.HHE. ML:2.3 0.0011112905 0.2624 AML other m 2021-02-04T12:51:01.47
IV.ATCC.EHN. ML:2.2 0.00083585465 0.1792 AML other m 2021-02-04T12:51:02.59
IV.PARC.HHE. ML:1.7 0.00023985705 0.5568 AML other m 2021-02-04T12:51:02.97
IV.ATCC.EHE. ML:2.4 0.00134 0.28 AML other m 2021-02-04T12:51:02.60
IV.PARC.HHN. ML:1.7 0.0002265805 0.48 AML other m 2021-02-04T12:51:03.02
IV.CRE.HHE. ML:1.6 0.00011485 0.42 AML other m 2021-02-04T12:51:07.67
IV.CRE.HHN. ML:1.8 0.0001941227 0.3648 AML other m 2021-02-04T12:51:07.79
IV.EL6.EHN. ML:2.2 0.00038236385 0.16 AML other m 2021-02-04T12:51:09.39
IV.EL6.EHE. ML:2 0.0002722638 0.48 AML other m 2021-02-04T12:51:09.27
IV.CESI.HHN. ML:1.6 8.260964E-5 0.9024 AML other m 2021-02-04T12:51:11.39
IV.FDMO.HHN. ML:2.1 0.0002185 0.22 AML other m 2021-02-04T12:51:13.02
IV.FDMO.HHE. ML:1.9 0.0001435 0.18 AML other m 2021-02-04T12:51:13.02
IV.MGAB.HHN. ML:2 0.00020999065 0.2816 AML other m 2021-02-04T12:51:12.84
IV.MGAB.HHE. ML:2.2 0.0002891815 0.8768 AML other m 2021-02-04T12:51:12.98
IV.MGAB.HNN. ML:2.1 0.0002401488 0.5632 AML other m 2021-02-04T12:51:12.84
IV.CSP1.EHE. ML:2.5 0.000519 0.24 AML other m 2021-02-04T12:51:15.34
IV.CSP1.EHN. ML:2.6 0.000685 0.22 AML other m 2021-02-04T12:51:15.52
IV.NRCA.HNN. ML:2.2 0.00020941011 0.9408 AML other m 2021-02-04T12:51:05.53
IV.NRCA.HHN. ML:1.7 6.991993E-5 0.16 AML other m 2021-02-04T12:51:18.14
IV.NRCA.HHE. ML:1.7 6.8029075E-5 0.16 AML other m 2021-02-04T12:51:18.87
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download