Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 25-09-2019 and time 17:38:32 (Italy) in region 5 km NE Acquasanta Terme (AP)

A magnitude ML 1.8 earthquake occured in region: 5 km NE Acquasanta Terme (AP), on

  • 25-09-2019 15:38:32 (UTC)
  • 25-09-2019 17:38:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8090, 13.4300 at 19 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Acquasanta Terme AP 5 2916 2916
Roccafluvione AP 7 2010 4926
Montegallo AP 9 523 5449
Venarotta AP 10 2066 7515
Valle Castellana TE 10 977 8492
Palmiano AP 11 196 8688
Arquata del Tronto AP 12 1178 9866
Montemonaco AP 13 604 10470
Ascoli Piceno AP 13 49407 59877
Rocca Santa Maria TE 16 537 60414
Montefortino FM 17 1178 61592
Folignano AP 17 9241 70833
Comunanza AP 17 3166 73999
Force AP 18 1354 75353
Accumoli RI 19 667 76020
Rotella AP 20 906 76926
Civitella del Tronto TE 20 5116 82042

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NW of Teramo (54892 inhabitants)
51 Km N of L'Aquila (69753 inhabitants)
61 Km E of Foligno (57155 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
70 Km E of Terni (111501 inhabitants)
75 Km NW of Pescara (121014 inhabitants)
79 Km NW of Chieti (51815 inhabitants)
90 Km S of Ancona (100861 inhabitants)
91 Km E of Perugia (166134 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 1.8 2019-09-25
15:38:32		 42.8088 13.4297 19 2020-02-28
16:42:11		 Bollettino Sismico Italiano INGV 74338121
Reviewed
Rev100 		ML 1.8 2019-09-25
15:38:32		 42.8075 13.4283 19 2019-09-25
15:44:07		 Sala Sismica INGV-Roma 72763091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-25 15:38:32 ± 0.08
Latitude 42.8088 ± 0.0027
Longitude 13.4297 ± 0.0061
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74338121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 516
Semi-minor axis of confidence ellipse (meter) 118
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 257
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.51261
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 74338121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-05 11:03:53

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 72763091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-25 15:44:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCEL.EHN. 2019-09-25T15:38:51.17 0.6 undecidable manual S 144 56.8986 101 0.55 41
IV.GAVE.EHZ. 2019-09-25T15:38:47.75 0.6 undecidable manual S 254 45.5211 104 0.11 46
IV.GIGS.HHZ. 2019-09-25T15:38:46.34 0.6 undecidable manual S 163 41.1255 106 -0.18 46
IT.MTCL.HGZ. 2019-09-25T15:38:46.34 0.6 undecidable manual S 301 40.5261 106 -0.02 48
IV.LNSS.HHZ. 2019-09-25T15:38:46.39 0.6 undecidable manual S 234 39.1275 107 0.4 44
IV.PF6.EHN. 2019-09-25T15:38:46.61 0.6 undecidable manual S 332 41.2254 106 0.08 47
IV.FDMO.HHZ. 2019-09-25T15:38:45.45 0.6 undecidable manual S 312 37.5291 108 -0.15 47
IV.RM33.EHZ. 2019-09-25T15:38:45.84 0.6 undecidable manual S 208 37.629 108 0.22 46
IV.FEMA.HNE. 2019-09-25T15:38:45.19 0.6 undecidable manual S 299 35.2425 109 0.17 46
IV.OFFI.HHE. 2019-09-25T15:38:44.65 1.0 undecidable manual S 56 25.0527 119 2.11 9
IV.VCEL.EHN. 2019-09-25T15:38:43.11 0.3 undecidable manual P 144 56.8986 101 0.04 69
IV.CAMP.HHZ. 2019-09-25T15:38:43.79 0.3 undecidable manual S 183 30.3474 113 -0.01 73
IV.GUMA.HNN. 2019-09-25T15:38:43.96 0.6 undecidable manual S 345 29.1486 114 0.45 44
IV.MC2.EHZ. 2019-09-25T15:38:42.21 0.6 undecidable manual S 300 22.6551 122 0.24 47
IV.TERO.HHZ. 2019-09-25T15:38:42.45 0.6 undecidable manual S 145 25.0527 119 -0.08 48
IV.T1299.HNN. 2019-09-25T15:38:42.38 0.3 undecidable manual S 212 22.755 122 0.37 68
IV.NRCA.HHZ. 2019-09-25T15:38:42.63 0.3 undecidable manual S 276 25.752 118 -0.08 73
IV.SMA1.EHZ. 2019-09-25T15:38:41.56 0.3 undecidable manual S 201 21.2676 124 -0.1 73
IV.GAVE.EHZ. 2019-09-25T15:38:41.33 0.3 undecidable manual P 254 45.5211 104 -0.02 70
IV.MF5.EHZ. 2019-09-25T15:38:41.79 0.3 undecidable manual S 7 19.9689 126 0.4 68
IV.RM33.EHZ. 2019-09-25T15:38:40.14 0.1 positive manual P 208 37.629 108 -0.04 95
IV.LNSS.HHZ. 2019-09-25T15:38:40.33 0.1 undecidable manual P 234 39.1275 107 -0.08 94
IV.PF6.EHN. 2019-09-25T15:38:40.48 0.3 undecidable manual P 332 41.2254 106 -0.23 68
IV.FEMA.HNE. 2019-09-25T15:38:40.06 0.6 undecidable manual P 299 35.2425 109 0.22 46
IV.GIGS.HHZ. 2019-09-25T15:38:40.50 0.3 undecidable manual P 163 41.1255 106 -0.21 68
IT.MTCL.HGZ. 2019-09-25T15:38:40.44 0.3 undecidable manual P 301 40.5261 106 -0.17 69
IV.CAMP.HHZ. 2019-09-25T15:38:39.08 0.1 undecidable manual P 183 30.3474 113 -0.05 96
IV.GUMA.HNN. 2019-09-25T15:38:39.00 0.6 undecidable manual P 345 29.1486 114 0.03 49
IV.MMO1.EHZ. 2019-09-25T15:38:39.78 0.3 undecidable manual S 320 13.0758 141 -0.26 72
IV.FDMO.HHZ. 2019-09-25T15:38:39.95 0.3 undecidable manual P 312 37.5291 108 -0.23 69
IV.TERO.HHZ. 2019-09-25T15:38:38.30 0.3 undecidable manual P 145 25.0527 119 -0.1 72
IV.T1299.HNN. 2019-09-25T15:38:38.25 0.1 undecidable manual P 212 22.755 122 0.15 96
IV.NRCA.HHZ. 2019-09-25T15:38:38.38 0.1 undecidable manual P 276 25.752 118 -0.12 96
IV.MTRA.HNZ. 2019-09-25T15:38:38.93 0.3 undecidable manual S 205 6.3936 159 -0.21 74
IV.MC2.EHZ. 2019-09-25T15:38:38.09 0.1 undecidable manual P 300 22.6551 122 0.01 98
IV.OFFI.HHE. 2019-09-25T15:38:38.41 1.0 undecidable manual P 56 25.0527 119 0 25
IV.MF5.EHZ. 2019-09-25T15:38:37.36 0.3 undecidable manual P 7 19.9689 126 -0.38 69
IV.SMA1.EHZ. 2019-09-25T15:38:37.95 0.1 undecidable manual P 201 21.2676 124 0.05 98
IV.MMO1.EHZ. 2019-09-25T15:38:36.81 0.1 undecidable manual P 320 13.0758 141 -0.16 97
IV.MTRA.HNZ. 2019-09-25T15:38:36.35 0.1 undecidable manual P 205 6.3936 159 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.6 0.00035507299999999997 0.1408 AML other m 2019-09-25T15:38:39.32
IV.MTRA.HNE. ML:1.6 0.00033885515 0.1408 AML other m 2019-09-25T15:38:39.86
IV.MTRA.HNN. ML:2.1 0.00095156565 0.1152 AML other m 2019-09-25T15:38:38.97
IV.MTRA.EHN. ML:2.1 0.0009604893 0.128 AML other m 2019-09-25T15:38:38.98
IV.MF5.EHN. ML:1.8 0.0003665543 0.32 AML other m 2019-09-25T15:38:41.00
IV.MF5.EHE. ML:1.8 0.00033461600000000004 0.32 AML other m 2019-09-25T15:38:41.98
IV.SMA1.EHN. ML:2.1 0.000775767 0.192 AML other m 2019-09-25T15:38:42.02
IV.SMA1.EHE. ML:2.1 0.0007125604 0.192 AML other m 2019-09-25T15:38:42.03
IV.TERO.HHN. ML:1.4 0.00011614375 0.0512 AML other m 2019-09-25T15:38:43.72
IV.TERO.HNE. ML:1.8 0.000276817025 0.8192 AML other m 2019-09-25T15:38:42.35
IV.TERO.HNN. ML:1.1 0.00005347014 0.064 AML other m 2019-09-25T15:38:43.72
IV.TERO.HHE. ML:1.3 0.00009521527 0.0512 AML other m 2019-09-25T15:38:43.95
IV.NRCA.HHN. ML:2.5 0.0015782745000000001 0.1024 AML other m 2019-09-25T15:38:42.91
IV.NRCA.HNN. ML:2.5 0.0014261865 0.1024 AML other m 2019-09-25T15:38:42.92
IV.NRCA.HHE. ML:2.3 0.0008597682 0.128 AML other m 2019-09-25T15:38:42.87
IV.NRCA.HNE. ML:2.2 0.0007945796000000001 0.1408 AML other m 2019-09-25T15:38:42.87
IV.CAMP.HHE. ML:2.0 0.00037891075 0.256 AML other m 2019-09-25T15:38:44.11
IV.CAMP.HHN. ML:1.7 0.0002067801 0.2432 AML other m 2019-09-25T15:38:44.14
IV.FDMO.HHN. ML:1.4 0.00008772959999999999 0.1408 AML other m 2019-09-25T15:38:45.93
IV.FDMO.HHE. ML:1.4 0.000076662595 0.1792 AML other m 2019-09-25T15:38:45.74
IV.RM33.EHN. ML:1.6 0.0001418304 0.1408 AML other m 2019-09-25T15:38:46.25
IV.RM33.EHE. ML:1.6 0.00014715875 0.1664 AML other m 2019-09-25T15:38:46.52
IV.LNSS.HNE. ML:1.5 0.00011044815 0.1152 AML other m 2019-09-25T15:38:47.54
IV.LNSS.HHN. ML:1.6 0.00011327886500000001 0.1408 AML other m 2019-09-25T15:38:47.20
IV.LNSS.HHE. ML:1.6 0.000124311 0.128 AML other m 2019-09-25T15:38:47.48
IV.GAVE.EHE. ML:1.7 0.000144814945 0.1664 AML other m 2019-09-25T15:38:49.06
IV.GAVE.EHN. ML:1.8 0.0001658555 0.2816 AML other m 2019-09-25T15:38:48.78
IV.GAVE.HNE. ML:1.7 0.00014633580000000002 0.1792 AML other m 2019-09-25T15:38:49.06
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