Earthquake with magnitude of ML 1.4 on date 25-03-2020 and time 15:32:01 (UTC) in region 7 km W Spoleto (PG)

A magnitude ML 1.4 earthquake occured in region: 7 km W Spoleto (PG), on

  • 25-03-2020 15:32:01 (UTC)
  • 25-03-2020 16:32:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.72, 12.66 at 14 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
Spoleto PG 7 38218 38218
Acquasparta TR 10 4778 42996
Castel Ritaldi PG 12 3278 46274
Massa Martana PG 13 3770 50044
Scheggino PG 14 461 50505
San Gemini TR 15 5018 55523
Sant'Anatolia di Narco PG 15 564 56087
Giano dell'Umbria PG 15 3846 59933
Ferentillo TR 15 1913 61846
Campello sul Clitunno PG 15 2442 64288
Montecastrilli TR 16 5022 69310
Montefranco TR 16 1276 70586
Terni TR 17 111501 182087
Arrone TR 17 2763 184850
Vallo di Nera PG 18 364 185214
Trevi PG 20 8469 193683
Avigliano Umbro TR 20 2558 196241
Montefalco PG 20 5679 201920

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km N of Terni (111501 inhabitants)
27 Km S of Foligno (57155 inhabitants)
49 Km SE of Perugia (166134 inhabitants)
56 Km NE of Viterbo (67173 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
80 Km N of Guidonia Montecelio (88673 inhabitants)
84 Km N of Tivoli (56533 inhabitants)
86 Km W of Teramo (54892 inhabitants)
93 Km N of Roma (2864731 inhabitants)
99 Km NE of Civitavecchia (52991 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 1.4 2020-03-25
15:32:01
42.72 12.66 14 2020-03-25
15:44:05
Sala Sismica INGV-Roma 77564391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-25 15:32:01 ± 0.16
Latitude 42.72 ± 0.00
Longitude 12.66 ± 0.01
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77564391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 506
Semi-minor axis of confidence ellipse (meter) 321
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 156
Circular confidence region, given by single value of horizontal uncertainty (meter) 510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.54859
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 77564391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-25 15:44:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OX.CIMO.HHZ. 2020-03-25T15:33:51.11 3.0 undecidable manual Sg 14.27 0
GU.CANO.HHZ. 2020-03-25T15:33:35.47 3.0 undecidable manual Sn -0.25 0
GU.RRL.HHZ. 2020-03-25T15:33:24.40 3.0 undecidable manual Pg 13.38 0
IV.CRJA.HHZ. 2020-03-25T15:33:20.77 3.0 undecidable manual Pg 7.42 0
IV.CGL.BHZ. 2020-03-25T15:33:12.92 3.0 undecidable manual Pg 9.49 0
IX.STN3.HHZ.02 2020-03-25T15:32:48.14 3.0 undecidable manual Pn -0.73 0
OX.CGRP.HHZ. 2020-03-25T15:32:46.76 3.0 undecidable manual Pn -2.74 0
IV.PAOL.HHZ. 2020-03-25T15:32:42.94 3.0 undecidable manual Pg 6.77 0
IV.FAGN.HHZ. 2020-03-25T15:32:30.41 3.0 undecidable manual S 0.44 0
IV.FIR.HHZ. 2020-03-25T15:32:25.06 3.0 undecidable manual Pn -0.44 0
IV.CSP1.EHZ. 2020-03-25T15:32:20.11 0.1 undecidable manual S 47 0.5486 93 0.27 87
IV.MC2.EHZ. 2020-03-25T15:32:17.05 3.0 undecidable manual S -0.28 0
IV.NRCA.HHZ. 2020-03-25T15:32:13.88 0.1 undecidable manual S 70 0.3543 96 -0.21 93
IV.LNSS.HHZ. 2020-03-25T15:32:12.48 0.1 undecidable manual S 112 0.3022 98 -0.08 97
IV.CSP1.EHZ. 2020-03-25T15:32:11.78 1.0 negative manual P 47 0.5486 93 -0.14 23
IV.CESI.HHZ. 2020-03-25T15:32:08.26 0.1 positive manual P 32 0.3408 97 -0.11 95
IV.NRCA.HHZ. 2020-03-25T15:32:08.53 0.6 positive manual P 70 0.3543 96 -0.07 48
IV.MOMA.HHZ. 2020-03-25T15:32:07.09 0.1 undecidable manual S 323 0.1097 128 -0.1 99
IV.CESX.HHZ. 2020-03-25T15:32:07.28 0.1 undecidable manual S 206 0.1196 124 -0.14 98
IV.LNSS.HHZ. 2020-03-25T15:32:07.67 0.1 undecidable manual P 112 0.3022 98 -0.04 97
IV.ARRO.EHZ. 2020-03-25T15:32:05.80 0.3 positive manual P 150 0.1574 114 0.49 68
IV.CESX.HHZ. 2020-03-25T15:32:04.85 0.1 undecidable manual P 206 0.1196 124 0.1 99
IV.MOMA.HHZ. 2020-03-25T15:32:04.69 0.1 undecidable manual P 323 0.1097 128 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHN. ML:1.7 0.000434 0.42 AML other m 2020-03-25T15:32:07.33
IV.MOMA.HNN. ML:1.7 0.0004965 0.44 AML other m 2020-03-25T15:32:07.55
IV.MOMA.HHE. ML:1.4 0.0002455 0.76 AML other m 2020-03-25T15:32:07.50
IV.MOMA.HNE. ML:1.4 0.000256 0.42 AML other m 2020-03-25T15:32:07.50
IV.CESX.HHE. ML:1.3 0.000196 1.12 AML other m 2020-03-25T15:32:07.08
IV.CESX.HHN. ML:1.4 0.000233 0.32 AML other m 2020-03-25T15:32:08.89
IV.ARRO.EHE. ML:1.2 0.0001202 0.2 AML other m 2020-03-25T15:32:09.28
IV.ARRO.EHN. ML:1.2 0.0001093 0.38 AML other m 2020-03-25T15:32:10.01
IV.FAGN.HHE. ML:2.5 0.0003455 1.94 AML other m 2020-03-25T15:32:33.98
IV.FAGN.HHN. ML:2 0.00010865 1.94 AML other m 2020-03-25T15:32:33.99
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