Earthquake with magnitude of ML 1.6 on date 25-03-2020 and time 17:58:30 (UTC) in region 7 km NW Pietralunga (PG)

A magnitude ML 1.6 earthquake occured in region: 7 km NW Pietralunga (PG), on

  • 25-03-2020 17:58:30 (UTC)
  • 25-03-2020 18:58:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.48, 12.37 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
Pietralunga PG 7 2111 2111
Apecchio PU 10 1882 3993
CittĂ  di Castello PG 11 39913 43906
Montone PG 13 1680 45586
Monte Santa Maria Tiberina PG 17 1183 46769
Piobbico PU 17 2029 48798
San Giustino PG 17 11297 60095
Umbertide PG 19 16681 76776
Mercatello sul Metauro PU 19 1378 78154

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Arezzo (99543 inhabitants)
41 Km N of Perugia (166134 inhabitants)
64 Km NW of Foligno (57155 inhabitants)
65 Km SW of Pesaro (94582 inhabitants)
67 Km SW of Fano (60888 inhabitants)
67 Km S of Rimini (147750 inhabitants)
74 Km S of Cesena (96758 inhabitants)
86 Km E of Siena (53903 inhabitants)
87 Km SE of Forlì (117913 inhabitants)
94 Km W of Ancona (100861 inhabitants)
95 Km E of Firenze (382808 inhabitants)
98 Km SE of Faenza (58541 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 1.6 2020-03-25
17:58:30
43.48 12.37 9 2020-03-25
18:04:51
Sala Sismica INGV-Roma 77568071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-25 17:58:30 ± 0.12
Latitude 43.48 ± 0.00
Longitude 12.37 ± 0.00
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77568071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 50
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.20415
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 77568071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-25 18:04:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-03-25T17:58:50.75 3.0 undecidable manual S 0.29 0
IV.NARO.HHZ. 2020-03-25T17:58:38.22 0.1 undecidable manual S 49 0.2041 111 -0.24 93
IV.PARC.HHZ. 2020-03-25T17:58:38.15 0.1 undecidable manual S 331 0.1961 111 -0.01 98
IV.ATFO.HHZ. 2020-03-25T17:58:37.62 0.1 undecidable manual S 127 0.1844 113 -0.12 96
IV.SSFR.HHZ. 2020-03-25T17:58:36.64 3.0 positive manual P -0.14 0
IV.PIEI.HHZ. 2020-03-25T17:58:36.42 0.1 undecidable manual S 64 0.1349 120 0.4 91
IV.ATVO.HHZ. 2020-03-25T17:58:35.04 0.1 undecidable manual S 164 0.0989 128 0.17 96
IV.FRON.EHZ. 2020-03-25T17:58:35.78 3.0 positive manual P -0.19 0
IV.PE3.EHZ. 2020-03-25T17:58:34.30 3.0 undecidable manual P -0.99 0
IV.PARC.HHZ. 2020-03-25T17:58:34.72 1.0 undecidable manual P 331 0.1961 111 -0.01 24
IV.BADI.EHZ. 2020-03-25T17:58:34.75 0.1 undecidable manual S 290 0.0953 129 -0.03 99
IV.SSP9.EHZ. 2020-03-25T17:58:34.76 0.6 positive manual P 300 0.197 111 0 49
IV.APEC.HHZ. 2020-03-25T17:58:34.71 0.1 undecidable manual S 25 0.0899 130 0.1 98
IV.ATFO.HHZ. 2020-03-25T17:58:34.42 0.1 undecidable manual P 127 0.1844 113 -0.07 97
IV.NARO.HHZ. 2020-03-25T17:58:34.65 0.1 positive manual P 49 0.2041 111 -0.26 93
IV.PIEI.HHZ. 2020-03-25T17:58:33.56 0.1 undecidable manual P 64 0.1349 120 0.06 98
IV.ATVO.HHZ. 2020-03-25T17:58:33.03 0.1 undecidable manual P 164 0.0989 128 0.2 96
IV.ATMI.HHZ. 2020-03-25T17:58:33.99 0.3 positive manual P 207 0.1601 116 -0.01 74
IV.ATPI.EHZ. 2020-03-25T17:58:33.03 0.1 undecidable manual S 136 0.036 155 -0.29 95
IV.BADI.EHZ. 2020-03-25T17:58:32.79 1.0 undecidable manual P 290 0.0953 129 0.01 25
IV.APEC.HHZ. 2020-03-25T17:58:32.81 0.1 positive manual P 25 0.0899 130 0.12 97
IV.ATPI.EHZ. 2020-03-25T17:58:31.90 0.1 undecidable manual P 136 0.036 155 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHN. ML:0 0.0010105 0.26 AML other m 2020-03-25T17:58:33.14
IV.ATPI.EHE. ML:0 0.0007015 0.42 AML other m 2020-03-25T17:58:34.27
IV.BADI.EHE. ML:1.8 0.0009715 0.16 AML other m 2020-03-25T17:58:35.01
IV.APEC.HHE. ML:1.9 0.0010075 0.4 AML other m 2020-03-25T17:58:35.11
IV.APEC.HHN. ML:1.6 0.00059 0.76 AML other m 2020-03-25T17:58:35.55
IV.ATVO.HHN. ML:1.9 0.000973 0.2 AML other m 2020-03-25T17:58:35.31
IV.BADI.EHN. ML:1.8 0.000907 0.74 AML other m 2020-03-25T17:58:35.07
IV.ATVO.HHE. ML:2.1 0.00151 0.4 AML other m 2020-03-25T17:58:35.50
IV.PIEI.HHN. ML:1.4 0.0002605 0.9 AML other m 2020-03-25T17:58:36.95
IV.PIEI.HHE. ML:1.6 0.000412 1.82 AML other m 2020-03-25T17:58:37.95
IV.ATMI.HHN. ML:1.4 0.0002435 1.02 AML other m 2020-03-25T17:58:37.15
IV.ATMI.HHE. ML:1.6 0.0003185 0.3 AML other m 2020-03-25T17:58:37.15
IV.APEC.HNE. ML:1.7 0.000784 1.32 AML other m 2020-03-25T17:58:37.09
IV.NARO.HHN. ML:1.2 0.0001027 0.16 AML other m 2020-03-25T17:58:38.49
IV.PARC.HHE. ML:1.5 0.000206 0.38 AML other m 2020-03-25T17:58:38.77
IV.PARC.HHN. ML:1.6 0.0002615 0.22 AML other m 2020-03-25T17:58:39.28
IV.FRON.EHE. ML:1.4 0.000121 1 AML other m 2020-03-25T17:58:40.28
IV.FRON.EHN. ML:1.5 0.00016 1.16 AML other m 2020-03-25T17:58:40.96
IV.NARO.HHE. ML:1.3 0.0001225 1.56 AML other m 2020-03-25T17:58:41.92
IV.SSFR.HHN. ML:1.6 0.0001585 0.42 AML other m 2020-03-25T17:58:41.58
IV.APEC.HNN. ML:1.9 0.0011555 1.58 AML other m 2020-03-25T17:58:41.94
IV.SSFR.HHE. ML:1.7 0.000193 0.66 AML other m 2020-03-25T17:58:42.35
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