Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 28-03-2020 and time 12:28:36 (Italy) in region 6 km SE Cerreto di Spoleto (PG)

A magnitude ML 1.4 earthquake occured in region: 6 km SE Cerreto di Spoleto (PG), on

  • 28-03-2020 11:28:36 (UTC)
  • 28-03-2020 12:28:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7860, 12.9720 at 10 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Cerreto di Spoleto PG 6 1075 1075
Cascia PG 8 3217 4292
Poggiodomo PG 9 117 4409
Vallo di Nera PG 9 364 4773
Norcia PG 10 4957 9730
Preci PG 12 724 10454
Sellano PG 12 1079 11533
Sant'Anatolia di Narco PG 12 564 12097
Scheggino PG 14 461 12558
Monteleone di Spoleto PG 15 599 13157
Campello sul Clitunno PG 16 2442 15599
Visso MC 19 1107 16706
Castelsantangelo sul Nera MC 19 281 16987
Spoleto PG 20 38218 55205

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SE of Foligno (57155 inhabitants)
36 Km NE of Terni (111501 inhabitants)
59 Km SE of Perugia (166134 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
62 Km W of Teramo (54892 inhabitants)
82 Km NE of Viterbo (67173 inhabitants)
90 Km N of Guidonia Montecelio (88673 inhabitants)
92 Km N of Tivoli (56533 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.4 2020-03-28
11:28:36		 42.7857 12.9717 10 2020-07-18
21:08:29		 Bollettino Sismico Italiano INGV 77701251
Reviewed
Rev100 		ML 1.2 2020-03-28
11:28:36		 42.7843 12.9743 11 2020-03-28
11:34:20		 Sala Sismica INGV-Roma 77643591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-28 11:28:36 ± 0.07
Latitude 42.7857 ± 0.0027
Longitude 12.9717 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77701251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 383
Semi-minor axis of confidence ellipse (meter) 325
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) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.11511
Epicentral distance of station farthest from the epicenter (degree) 0.46675
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 77643591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-28 11:34:20

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 77701251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-30 13:32:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHE. 2020-03-28T11:28:53.75 0.3 undecidable manual S 329 51.8037 50 0.73 59
IV.CESX.HHE. 2020-03-28T11:28:49.14 0.3 undecidable manual S 238 37.0296 50 0.08 72
IV.RM33.HNE. 2020-03-28T11:28:48.90 0.3 undecidable manual S 147 36.5412 50 -0.04 73
IT.GNU.HGE. 2020-03-28T11:28:47.84 0.3 undecidable manual S 274 32.745 50 -0.08 73
IV.MMO1.EHZ. 2020-03-28T11:28:47.47 0.3 undecidable manual S 66 31.5462 50 -0.13 72
IV.T1299.HNN. 2020-03-28T11:28:47.42 0.3 undecidable manual S 123 30.3474 50 0.13 72
IT.FOPC.HGN. 2020-03-28T11:28:47.38 0.3 undecidable manual S 313 29.8479 50 0.22 71
IV.FDMO.HHZ. 2020-03-28T11:28:46.83 0.3 undecidable manual S 19 29.3484 50 -0.19 72
IV.ATCC.EHE. 2020-03-28T11:28:46.55 0.3 undecidable manual P 329 51.8037 50 0.51 64
IV.MC2.EHZ. 2020-03-28T11:28:45.09 0.3 undecidable manual S 52 22.5552 114 0.02 75
IV.CESI.HHZ. 2020-03-28T11:28:45.74 0.3 undecidable manual S 347 24.9528 112 -0.1 74
IV.FEMA.HNZ. 2020-03-28T11:28:44.59 0.3 undecidable manual S 18 20.5683 116 0.13 74
IV.LNSS.HHZ. 2020-03-28T11:28:44.47 0.3 undecidable manual S 165 21.0678 116 -0.13 74
IT.MTCL.HGZ. 2020-03-28T11:28:44.97 0.1 undecidable manual S 6 23.2545 113 -0.32 94
IV.RM33.HNE. 2020-03-28T11:28:43.71 0.3 undecidable manual P 147 36.5412 50 0.03 73
IV.CESX.HHE. 2020-03-28T11:28:43.93 0.3 undecidable manual P 238 37.0296 50 0.17 71
IV.CSP1.EHZ. 2020-03-28T11:28:43.48 0.3 undecidable manual P 29 38.9277 50 -0.56 64
IT.FOPC.HGN. 2020-03-28T11:28:42.26 0.3 undecidable manual P 313 29.8479 50 -0.4 68
IV.NRCA.HHZ. 2020-03-28T11:28:42.09 0.3 undecidable manual S 65 12.7761 128 -0.06 76
IV.FDMO.HHZ. 2020-03-28T11:28:42.56 0.1 positive manual P 19 29.3484 50 -0.02 99
IT.GNU.HGE. 2020-03-28T11:28:42.13 0.3 undecidable manual P 274 32.745 50 -0.97 55
IV.MMO1.EHZ. 2020-03-28T11:28:42.91 0.1 undecidable manual P 66 31.5462 50 0 99
IV.T1299.HNN. 2020-03-28T11:28:42.76 0.3 undecidable manual P 123 30.3474 50 0.03 74
IV.CESI.HHZ. 2020-03-28T11:28:41.94 0.1 positive manual P 347 24.9528 112 0.05 99
IV.FEMA.HNZ. 2020-03-28T11:28:41.25 0.1 undecidable manual P 18 20.5683 116 0.15 98
IV.LNSS.HHZ. 2020-03-28T11:28:41.25 0.1 positive manual P 165 21.0678 116 0.07 99
IT.MTCL.HGZ. 2020-03-28T11:28:41.56 0.1 undecidable manual P 6 23.2545 113 -0.02 100
IV.MC2.EHZ. 2020-03-28T11:28:41.63 0.1 undecidable manual P 52 22.5552 114 0.18 97
IV.NRCA.HHZ. 2020-03-28T11:28:39.97 0.1 positive manual P 65 12.7761 128 0.21 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:1.6 0.00040557254999999996 0.096 AML other m 2020-03-28T11:28:42.29
IV.NRCA.HNN. ML:1.6 0.0004547124 0.16 AML other m 2020-03-28T11:28:42.21
IV.NRCA.HHN. ML:1.6 0.00043118155 0.1024 AML other m 2020-03-28T11:28:42.20
IV.NRCA.HHE. ML:1.6 0.0004509666 0.0832 AML other m 2020-03-28T11:28:42.33
IV.LNSS.HNN. ML:1.4 0.00019064565 0.16 AML other m 2020-03-28T11:28:44.76
IV.LNSS.HHE. ML:1.3 0.0001564684 0.1024 AML other m 2020-03-28T11:28:44.68
IV.LNSS.HNE. ML:1.4 0.0001618635 0.1408 AML other m 2020-03-28T11:28:45.04
IV.LNSS.HHN. ML:1.4 0.00019292970000000002 0.1792 AML other m 2020-03-28T11:28:44.97
IV.CESI.HHE. ML:0.9 0.00004517684 0.096 AML other m 2020-03-28T11:28:46.62
IV.CESI.HHN. ML:1.2 0.00009850787999999999 0.2624 AML other m 2020-03-28T11:28:45.89
IV.FDMO.HHN. ML:0.9 0.00003913483 0.1792 AML other m 2020-03-28T11:28:47.03
IV.FDMO.HHE. ML:1.1 0.00006711457000000001 0.1792 AML other m 2020-03-28T11:28:47.14
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download