Earthquake with magnitude of ML 2.0 on date 28-10-2018 and time 21:24:23 (Italy) in region 4 km W Trevi (PG)

A magnitude ML 2.0 earthquake occured in region: 4 km W Trevi (PG), on

  • 28-10-2018 20:24:23 (UTC)
  • 28-10-2018 21:24:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.88, 12.7 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
Trevi PG 4 8469 8469
Montefalco PG 4 5679 14148
Castel Ritaldi PG 7 3278 17426
Foligno PG 9 57155 74581
Campello sul Clitunno PG 9 2442 77023
Bevagna PG 10 5081 82104
Giano dell'Umbria PG 11 3846 85950
Gualdo Cattaneo PG 12 6155 92105
Spello PG 13 8645 100750
Cannara PG 16 4305 105055
Spoleto PG 16 38218 143273
Vallo di Nera PG 18 364 143637
Massa Martana PG 18 3770 147407
Sellano PG 19 1079 148486
Cerreto di Spoleto PG 19 1075 149561
Sant'Anatolia di Narco PG 20 564 150125

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km S of Foligno (57155 inhabitants)
36 Km N of Terni (111501 inhabitants)
36 Km SE of Perugia (166134 inhabitants)
71 Km NE of Viterbo (67173 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
86 Km W of Teramo (54892 inhabitants)
93 Km SE of Arezzo (99543 inhabitants)
98 Km N of Guidonia Montecelio (88673 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 last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. 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 last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 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 1985

Earthquakes since 1985 *

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 2014

Earthquakes since 1000 AD until 2014 *

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
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 1000 ML 2.0 2018-10-28
20:24:23
42.88 12.7 7 2019-06-04
09:16:17
Bollettino Sismico Italiano INGV 68573421
Rev 100 ML 2.0 2018-10-28
20:24:23
42.88 12.7 10 2018-10-28
20:32:18
Sala Sismica INGV-Roma 62490471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-28 20:24:23 ± 0.08
Latitude 42.88 ± 0.00
Longitude 12.70 ± 0.00
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68573421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 394
Semi-minor axis of confidence ellipse (meter) 183
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 252
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.71136
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 43
Type of magnitude ML
Reference to an origin 68573421
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-15 16:23:57

ML:2

Field Value
Value 2
Uncertainty 0.1
Num. used stations 28
Type of magnitude ML
Reference to an origin 62490471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-10-28 20:32:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IFOR.HHZ. 2018-10-28T20:25:36.73 3.0 undecidable manual Sg 5.72 0
IV.FIAM.HHZ. 2018-10-28T20:24:47.20 0.3 undecidable manual S 153 0.6844 50 0.4 66
IV.TERO.HHZ. 2018-10-28T20:24:47.90 0.3 undecidable manual S 111 0.7114 50 0.3 67
IV.MF5.EHZ. 2018-10-28T20:24:44.20 0.3 undecidable manual S 79 0.5666 50 0.91 56
IV.SSFR.HHN. 2018-10-28T20:24:43.62 0.3 undecidable manual S 6 0.5594 50 0.54 65
IV.ATSC.EHE. 2018-10-28T20:24:43.00 0.3 undecidable manual S 359 0.5432 50 0.38 68
IV.MTRA.EHZ. 2018-10-28T20:24:42.20 0.3 undecidable manual S 103 0.5252 50 0.12 72
IV.RM33.EHZ. 2018-10-28T20:24:42.50 0.3 undecidable manual S 134 0.5297 50 0.29 70
IV.ATFO.HHN. 2018-10-28T20:24:41.99 0.3 undecidable manual S 349 0.4946 50 0.81 59
IV.ATLO.EHE. 2018-10-28T20:24:41.36 0.3 undecidable manual S 334 0.4847 50 0.49 67
IV.MMO1.EHZ. 2018-10-28T20:24:39.90 0.3 undecidable manual S 87 0.4596 50 -0.23 72
IV.SNTG.HHZ. 2018-10-28T20:24:38.80 0.3 undecidable manual S 25 0.4137 50 0.02 76
IV.MURB.HHZ. 2018-10-28T20:24:38.60 0.3 undecidable manual S 342 0.4038 50 0.13 74
IV.MC2.EHZ. 2018-10-28T20:24:37.60 0.6 undecidable manual S 85 0.3597 100 0.48 46
IV.TERO.HHZ. 2018-10-28T20:24:37.12 0.1 undecidable manual P 111 0.7114 50 -0.12 93
IV.FIAM.HHZ. 2018-10-28T20:24:36.67 0.1 undecidable manual P 153 0.6844 50 -0.11 94
IV.PIEI.HHZ. 2018-10-28T20:24:36.20 0.1 undecidable manual P 350 0.6664 50 -0.26 91
IV.ARVD.HHZ. 2018-10-28T20:24:35.78 0.1 undecidable manual P 16 0.6421 50 -0.27 91
IV.NRCA.HHZ. 2018-10-28T20:24:35.30 0.3 undecidable manual S 99 0.3076 101 0.16 75
IV.FDMO.HHZ. 2018-10-28T20:24:35.60 0.1 undecidable manual S 61 0.3238 101 -0.16 100
IV.MML1.EHN. 2018-10-28T20:24:35.00 0.3 undecidable manual S 40 0.3067 101 -0.11 76
IV.ARRO.EHZ. 2018-10-28T20:24:35.40 0.3 undecidable manual S 171 0.3049 101 0.35 72
IV.MF5.EHZ. 2018-10-28T20:24:34.93 0.1 undecidable manual P 79 0.5666 50 0.17 95
IV.FEMA.HNE. 2018-10-28T20:24:34.00 0.6 undecidable manual S 72 0.2689 103 0.3 49
IV.ATVO.HHZ. 2018-10-28T20:24:34.00 0.1 undecidable manual P 337 0.545 50 -0.4 91
IV.SSFR.HHN. 2018-10-28T20:24:34.97 0.1 undecidable manual P 6 0.5594 50 0.34 92
IV.CESX.HHZ. 2018-10-28T20:24:34.10 0.6 undecidable manual S 197 0.2842 102 -0.17 50
IV.ATSC.EHE. 2018-10-28T20:24:34.04 0.1 undecidable manual P 359 0.5432 50 -0.33 92
IV.ATFO.HHN. 2018-10-28T20:24:33.61 0.1 undecidable manual P 349 0.4946 50 0.07 98
IV.MTRA.EHZ. 2018-10-28T20:24:33.67 0.1 undecidable manual P 103 0.5252 50 -0.38 91
IV.EL6.EHZ. 2018-10-28T20:24:33.86 0.1 undecidable manual P 33 0.536 50 -0.38 91
IV.RM33.EHZ. 2018-10-28T20:24:33.79 0.1 undecidable manual P 134 0.5297 50 -0.34 92
IV.SMA1.EHZ. 2018-10-28T20:24:33.94 0.1 undecidable manual P 118 0.5288 50 -0.18 95
IV.MMO1.EHZ. 2018-10-28T20:24:32.62 0.3 undecidable manual P 87 0.4596 50 -0.31 70
IV.ATLO.EHE. 2018-10-28T20:24:32.99 0.1 undecidable manual P 334 0.4847 50 -0.36 93
IV.GAVE.EHZ. 2018-10-28T20:24:32.90 3.0 undecidable manual S 0.06 0
IV.SNTG.HHZ. 2018-10-28T20:24:32.30 0.1 undecidable manual P 25 0.4137 50 0.15 98
IV.ATTE.HHN. 2018-10-28T20:24:31.55 0.1 undecidable manual P 322 0.4056 50 -0.47 92
IV.CESI.HHZ. 2018-10-28T20:24:31.50 0.6 undecidable manual S 50 0.1952 107 0.56 46
IV.LNSS.HHZ. 2018-10-28T20:24:31.00 0.1 undecidable manual P 138 0.3732 50 -0.45 93
IV.MURB.HHZ. 2018-10-28T20:24:31.68 0.1 undecidable manual P 342 0.4038 50 -0.29 95
IV.ARRO.EHZ. 2018-10-28T20:24:30.13 0.3 positive manual P 171 0.3049 101 0.14 75
IV.MC2.EHZ. 2018-10-28T20:24:30.61 0.3 undecidable manual P 85 0.3597 100 -0.58 67
IV.FDMO.HHZ. 2018-10-28T20:24:30.21 0.1 positive manual P 61 0.3238 101 -0.19 99
IV.MML1.EHN. 2018-10-28T20:24:29.83 0.1 undecidable manual P 40 0.3067 101 -0.2 99
IV.CESX.HHZ. 2018-10-28T20:24:29.36 0.1 undecidable manual P 197 0.2842 102 -0.18 100
IV.MOMA.HHZ. 2018-10-28T20:24:29.30 0.6 undecidable manual S 231 0.1223 116 0.97 40
IV.NRCA.HHZ. 2018-10-28T20:24:29.85 0.1 undecidable manual P 99 0.3076 101 -0.19 99
IV.FEMA.HNE. 2018-10-28T20:24:29.32 0.3 undecidable manual P 72 0.2689 103 0.11 76
IV.GAVE.EHZ. 2018-10-28T20:24:28.71 3.0 undecidable manual P -0.07 0
IV.CESI.HHZ. 2018-10-28T20:24:27.93 0.1 positive manual P 50 0.1952 107 0.31 99
IV.MOMA.HHZ. 2018-10-28T20:24:26.56 0.1 positive manual P 231 0.1223 116 0.45 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HNN. ML:0 0.0017256645 0.384 AML other m 2018-10-28T20:24:30.26
IV.MOMA.HHN. ML:0 0.00142907965 0.2816 AML other m 2018-10-28T20:24:30.07
IV.MOMA.HNE. ML:0 0.001396866 0.1536 AML other m 2018-10-28T20:24:29.84
IV.MOMA.HHE. ML:0 0.001568646 0.2816 AML other m 2018-10-28T20:24:30.71
IV.CESI.HHE. ML:0 0.0004202021 0.2304 AML other m 2018-10-28T20:24:33.13
IV.CESI.HHN. ML:0 0.00054167725 0.2176 AML other m 2018-10-28T20:24:34.20
IV.CESX.HHE. ML:0 0.00045758225 0.3072 AML other m 2018-10-28T20:24:37.91
IV.NRCA.HHN. ML:0 0.0006087986 0.1024 AML other m 2018-10-28T20:24:35.69
IV.NRCA.HNN. ML:0 0.00059189145 0.1152 AML other m 2018-10-28T20:24:35.75
IV.CESX.HHN. ML:0 0.0006101279 0.512 AML other m 2018-10-28T20:24:35.79
IV.FDMO.HHN. ML:0 0.0002561236 0.4224 AML other m 2018-10-28T20:24:36.36
IV.NRCA.HHE. ML:0 0.0004677039 0.1536 AML other m 2018-10-28T20:24:36.86
IV.NRCA.HNE. ML:0 0.00040819985 0.1536 AML other m 2018-10-28T20:24:36.86
IV.ARRO.EHE. ML:0 0.00030311615 0.192 AML other m 2018-10-28T20:24:36.61
IV.ARRO.EHN. ML:0 0.00025831365 0.1664 AML other m 2018-10-28T20:24:36.58
IV.FDMO.HHE. ML:0 0.0002685811 0.192 AML other m 2018-10-28T20:24:37.36
IV.LNSS.HHN. ML:0 0.0002815251 0.1408 AML other m 2018-10-28T20:24:40.05
IV.MURB.HNE. ML:0 0.00076803695 0.3456 AML other m 2018-10-28T20:24:39.07
IV.MURB.HHE. ML:0 0.0007904863 0.2816 AML other m 2018-10-28T20:24:39.07
IV.MURB.HHN. ML:0 0.00079713325 0.2816 AML other m 2018-10-28T20:24:40.36
IV.MURB.HNN. ML:0 0.00079079505 0.3072 AML other m 2018-10-28T20:24:40.38
IV.LNSS.HHE. ML:0 0.0003297175 0.2816 AML other m 2018-10-28T20:24:41.80
IV.SMA1.EHN. ML:0 0.00019945235 0.4224 AML other m 2018-10-28T20:24:43.94
IV.MTRA.EHE. ML:0 0.00021688575 0.2816 AML other m 2018-10-28T20:24:44.43
IV.RM33.EHE. ML:0 0.00014313199 0.3712 AML other m 2018-10-28T20:24:44.45
IV.RM33.EHN. ML:0 0.0001280962 0.256 AML other m 2018-10-28T20:24:44.88
IV.MTRA.EHN. ML:0 0.0001496386 0.2944 AML other m 2018-10-28T20:24:43.99
IV.SMA1.EHE. ML:0 0.0001619751 0.2816 AML other m 2018-10-28T20:24:43.78
IV.PIEI.HHN. ML:0 6.696542E-5 0.2944 AML other m 2018-10-28T20:24:48.35
IV.FIAM.HHN. ML:1.9 0.0001225 1 AML other m 2018-10-28T20:24:48.47
IV.PIEI.HHE. ML:0 8.845E-5 0.5 AML other m 2018-10-28T20:24:49.28
IV.FIAM.HHE. ML:1.8 9.77E-5 0.42 AML other m 2018-10-28T20:24:49.16
IV.GAVE.EHE. ML:2 0.0005633095 0.128 AML other m 2018-10-28T20:24:34.44
IV.GAVE.HNN. ML:1.6 0.0002203077 0.6784 AML other m 2018-10-28T20:24:36.60
IV.GAVE.EHN. ML:1.9 0.0004748897 0.6784 AML other m 2018-10-28T20:24:36.60
IV.GAVE.HNE. ML:2 0.00057875 0.32 AML other m 2018-10-28T20:24:37.38
IV.SNTG.HHN. ML:1.7 0.00013301205 0.32 AML other m 2018-10-28T20:24:41.64
IV.MTRA.HNN. ML:2 0.0002416639 0.8832 AML other m 2018-10-28T20:24:45.11
IV.MTRA.HNE. ML:2.1 0.00029076095 0.2816 AML other m 2018-10-28T20:24:44.44
IV.RM33.HNN. ML:2 0.00021157625 0.7936 AML other m 2018-10-28T20:24:44.48
IV.EL6.EHN. ML:2 0.00020778476 0.9856 AML other m 2018-10-28T20:24:44.32
IV.ATVO.HHN. ML:1.5 7.102168E-5 0.3968 AML other m 2018-10-28T20:24:49.91
IV.ATVO.HHE. ML:1.6 7.397878E-5 0.9088 AML other m 2018-10-28T20:24:46.04
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

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 full SEED format Download