Earthquake with magnitude of ML 1.8 on date 25-09-2018 and time 23:44:52 (Italy) in region 3 km NE Cerreto di Spoleto (PG)

A magnitude ML 1.8 earthquake occured in region: 3 km NE Cerreto di Spoleto (PG), on

  • 25-09-2018 21:44:52 (UTC)
  • 25-09-2018 23:44:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.84, 12.94 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.

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 3 1075 1075
Sellano PG 6 1079 2154
Preci PG 9 724 2878
Vallo di Nera PG 10 364 3242
Campello sul Clitunno PG 13 2442 5684
Norcia PG 14 4957 10641
Poggiodomo PG 14 117 10758
Sant'Anatolia di Narco PG 14 564 11322
Cascia PG 15 3217 14539
Trevi PG 16 8469 23008
Visso MC 16 1107 24115
Scheggino PG 17 461 24576
Monte Cavallo MC 18 145 24721
Castelsantangelo sul Nera MC 19 281 25002
Spoleto PG 20 38218 63220

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SE of Foligno (57155 inhabitants)
39 Km NE of Terni (111501 inhabitants)
54 Km SE of Perugia (166134 inhabitants)
66 Km W of Teramo (54892 inhabitants)
66 Km NW of L'Aquila (69753 inhabitants)
83 Km NE of Viterbo (67173 inhabitants)
95 Km N of Guidonia Montecelio (88673 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
99 Km SW of Ancona (100861 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
Rev 1000 ML 1.8 2018-09-25
21:44:52
42.84 12.94 10 2019-06-04
09:15:56
Bollettino Sismico Italiano INGV 61674811
Rev 100 ML 1.8 2018-09-25
21:44:52
42.84 12.94 10 2018-09-25
21:57:44
Sala Sismica INGV-Roma 61309631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-25 21:44:52 ± 0.06
Latitude 42.84 ± 0.00
Longitude 12.94 ± 0.00
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 61674811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 270
Semi-minor axis of confidence ellipse (meter) 225
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 162
Circular confidence region, given by single value of horizontal uncertainty (meter) 270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
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) 0.1295
Epicentral distance of station farthest from the epicenter (degree) 0.5342
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 40
Type of magnitude ML
Reference to an origin 61309631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-25 21:57:44

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 38
Type of magnitude ML
Reference to an origin 61674811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-06 07:03:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2018-09-25T21:45:11.49 0.3 undecidable manual S 114 0.5342 50 -0.05 70
IV.EL6.EHZ. 2018-09-25T21:45:10.91 0.6 undecidable manual S 14 0.5036 50 0.28 45
IV.FOSV.EHZ. 2018-09-25T21:45:10.20 0.6 undecidable manual S 344 0.473 50 0.5 43
IV.MF5.EHZ. 2018-09-25T21:45:08.58 0.3 undecidable manual S 69 0.4092 50 0.75 59
IV.RM33.EHZ. 2018-09-25T21:45:07.17 0.3 undecidable manual S 148 0.3876 50 -0.02 72
IV.GUMA.HHZ. 2018-09-25T21:45:06.97 0.3 undecidable manual S 52 0.366 50 0.42 67
IV.SMA1.EHZ. 2018-09-25T21:45:06.15 0.6 undecidable manual S 125 0.3588 50 -0.18 47
IV.MTRA.EHZ. 2018-09-25T21:45:05.83 0.3 undecidable manual S 104 0.3462 50 -0.13 71
IV.PF6.EHZ. 2018-09-25T21:45:05.88 0.3 undecidable manual S 32 0.3516 50 -0.24 70
IV.CESX.HHZ. 2018-09-25T21:45:05.88 0.3 undecidable manual S 228 0.3462 50 -0.07 72
IV.MOMA.HHZ. 2018-09-25T21:45:04.10 0.6 undecidable manual S 263 0.2725 50 0.34 46
IV.ASSB.HHZ. 2018-09-25T21:45:04.16 0.3 undecidable manual S 315 0.2878 50 -0.07 73
IV.CSP1.EHZ. 2018-09-25T21:45:04.95 0.3 undecidable manual S 38 0.3184 50 -0.19 71
IV.SEF1.HNZ. 2018-09-25T21:45:04.84 0.6 undecidable manual S 1 0.3067 50 0.05 49
IV.MMO1.EHZ. 2018-09-25T21:45:03.85 0.6 undecidable manual S 78 0.2905 50 -0.46 45
IV.EL6.EHZ. 2018-09-25T21:45:03.11 0.1 positive manual P 14 0.5036 50 -0.04 94
IV.TERO.HHZ. 2018-09-25T21:45:03.72 0.1 undecidable manual P 114 0.5342 50 0.04 93
IV.MML1.HNE. 2018-09-25T21:45:03.80 0.3 undecidable manual S 5 0.2752 50 -0.04 74
IV.FOSV.EHZ. 2018-09-25T21:45:02.48 0.1 positive manual P 344 0.473 50 -0.15 92
IV.MF5.EHZ. 2018-09-25T21:45:01.93 0.1 undecidable manual P 69 0.4092 50 0.39 89
IV.RM33.EHZ. 2018-09-25T21:45:01.08 0.1 negative manual P 148 0.3876 50 -0.09 95
IV.SNTG.HHZ. 2018-09-25T21:45:01.45 0.1 positive manual P 0 0.4155 50 -0.18 93
IV.MC2.EHZ. 2018-09-25T21:45:01.40 0.3 undecidable manual S 69 0.197 114 0.14 73
IV.CESX.HHZ. 2018-09-25T21:45:00.36 0.1 positive manual P 228 0.3462 50 -0.1 96
IV.MTRA.EHZ. 2018-09-25T21:45:00.34 0.1 positive manual P 104 0.3462 50 -0.11 95
IV.GUMA.HHZ. 2018-09-25T21:45:00.97 0.1 undecidable manual P 52 0.366 50 0.17 94
IV.PF6.EHZ. 2018-09-25T21:45:00.31 0.1 positive manual P 32 0.3516 50 -0.24 93
IV.SMA1.EHZ. 2018-09-25T21:45:00.88 0.3 undecidable manual P 125 0.3588 50 0.21 70
IV.ARRO.EHZ. 2018-09-25T21:44:59.48 0.1 positive manual P 206 0.2896 50 -0.01 99
IV.SEF1.HNZ. 2018-09-25T21:44:59.68 0.3 undecidable manual P 1 0.3067 50 -0.11 72
IV.MML1.HNE. 2018-09-25T21:44:59.07 0.1 positive manual P 5 0.2752 50 -0.17 96
IV.MMO1.EHZ. 2018-09-25T21:44:59.30 0.1 positive manual P 78 0.2905 50 -0.21 94
IV.FEMA.HNZ. 2018-09-25T21:44:59.46 0.1 undecidable manual S 34 0.1475 121 -0.09 100
IV.MOMA.HHZ. 2018-09-25T21:44:59.56 0.1 positive manual P 263 0.2725 50 0.37 92
IV.ASSB.HHZ. 2018-09-25T21:44:59.32 0.1 positive manual P 315 0.2878 50 -0.14 96
IV.CSP1.EHZ. 2018-09-25T21:44:59.81 0.1 positive manual P 38 0.3184 50 -0.17 95
IV.NRCA.HNZ. 2018-09-25T21:44:58.87 0.1 undecidable manual S 93 0.1295 124 -0.1 100
IV.FDMO.HHZ. 2018-09-25T21:44:58.19 0.1 positive manual P 29 0.2248 111 -0.13 97
IV.MC2.EHZ. 2018-09-25T21:44:57.92 0.3 undecidable manual P 69 0.197 114 0.17 73
IV.FEMA.HNZ. 2018-09-25T21:44:56.96 0.1 positive manual P 34 0.1475 121 0.2 97
IV.NRCA.HNZ. 2018-09-25T21:44:56.51 0.1 negative manual P 93 0.1295 124 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.3 0.0020668185 0.1024 AML other m 2018-09-25T21:44:59.64
IV.NRCA.HHN. ML:2.3 0.002115697 0.1024 AML other m 2018-09-25T21:44:59.64
IV.NRCA.HNE. ML:2.4 0.0025868135 0.1408 AML other m 2018-09-25T21:44:59.72
IV.NRCA.HHE. ML:2.4 0.002733296 0.1408 AML other m 2018-09-25T21:44:59.72
IV.RM33.HNN. ML:1.8 0.00022277885 0.6016 AML other m 2018-09-25T21:45:03.82
IV.MOMA.HNN. ML:1.7 0.000226619665 0.4864 AML other m 2018-09-25T21:45:04.06
IV.MOMA.HNE. ML:1.8 0.00033723945 0.2176 AML other m 2018-09-25T21:45:05.22
IV.MOMA.HHE. ML:1.9 0.00035121235 0.1792 AML other m 2018-09-25T21:45:05.11
IV.MOMA.HHN. ML:1.6 0.0002037722 0.192 AML other m 2018-09-25T21:45:05.24
IV.ASSB.HHN. ML:1.9 0.000347078 0.192 AML other m 2018-09-25T21:45:05.25
IV.ASSB.HHE. ML:1.9 0.0003587403 0.32 AML other m 2018-09-25T21:45:05.06
IV.CSP1.EHE. ML:1.8 0.00026551505 0.128 AML other m 2018-09-25T21:45:05.56
IV.ARRO.EHN. ML:1.7 0.00020738205 1.8208 AML other m 2018-09-25T21:45:05.03
IV.CESX.HHN. ML:2 0.00034397045 0.2432 AML other m 2018-09-25T21:45:06.34
IV.ARRO.EHE. ML:1.6 0.0002015245 0.2048 AML other m 2018-09-25T21:45:06.28
IV.MTRA.EHE. ML:1.7 0.00016692075 0.2176 AML other m 2018-09-25T21:45:06.57
IV.MTRA.HNN. ML:1.8 0.000208037515 1.5904 AML other m 2018-09-25T21:45:06.94
IV.MTRA.EHN. ML:1.8 0.00021296025 1.5776 AML other m 2018-09-25T21:45:06.94
IV.CESX.HHE. ML:1.9 0.000297081 0.3072 AML other m 2018-09-25T21:45:07.32
IV.CSP1.EHN. ML:1.8 0.00025448345 0.1792 AML other m 2018-09-25T21:45:07.16
IV.RM33.EHE. ML:1.9 0.00024211225 0.2176 AML other m 2018-09-25T21:45:07.64
IV.RM33.EHN. ML:1.8 0.0002201491 0.192 AML other m 2018-09-25T21:45:08.69
IV.RM33.HNE. ML:1.9 0.00026476418 0.448 AML other m 2018-09-25T21:45:09.41
IV.FOSV.EHE. ML:1.4 5.3775115E-5 0.1792 AML other m 2018-09-25T21:45:11.45
IV.SNTG.HHN. ML:1.5 8.849764E-5 0.1664 AML other m 2018-09-25T21:45:11.48
IV.SNTG.HHE. ML:1.3 5.863039E-5 0.256 AML other m 2018-09-25T21:45:11.43
IV.EL6.EHE. ML:1.9 0.0001856912 0.2176 AML other m 2018-09-25T21:45:12.20
IV.TERO.HHE. ML:1.5 6.973481E-5 0.1152 AML other m 2018-09-25T21:45:12.36
IV.FOSV.EHN. ML:1.5 7.3801955E-5 0.3968 AML other m 2018-09-25T21:45:12.82
IV.TERO.HHN. ML:1.5 7.119975E-5 0.256 AML other m 2018-09-25T21:45:13.49
IV.MTRA.HNE. ML:1.7 0.0001658533 0.4608 AML other m 2018-09-25T21:45:14.00
IV.EL6.EHN. ML:1.8 0.00016064245 0.32 AML other m 2018-09-25T21:45:15.32
IV.FIAM.HHN. ML:0 6.4728535E-5 0.256 AML other m 2018-09-25T21:45:15.43
IV.FIAM.HHE. ML:0 5.106077E-5 0.2944 AML other m 2018-09-25T21:45:16.22
IV.SNTG.HNE. ML:1.7 0.0001500491 1.4624 AML other m 2018-09-25T21:45:16.82
IV.MF5.EHE. ML:2.1 0.00033818375 0.1312 AML other m 2018-09-25T21:45:21.80
IV.MF5.EHN. ML:1.9 0.0002538563 0.2976 AML other m 2018-09-25T21:45:21.75
IV.SNTG.HNN. ML:1.8 0.0001771389 0.7936 AML other m 2018-09-25T21:45:23.16
IV.TERO.HNN. ML:1.6 9.09931E-5 0.6912 AML other m 2018-09-25T21:45:23.52
IV.TERO.HNE. ML:2.1 0.000266212 1.408 AML other m 2018-09-25T21:45:28.00
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