Earthquake with magnitude of Md 3.5 on date 21-09-1985 and time 23:51:14 (UTC) in region 1 km N Mosciano Sant'Angelo (TE)

A magnitude Md 3.5 earthquake occured in region: 1 km N Mosciano Sant'Angelo (TE), on

  • 21-09-1985 23:51:14 (UTC)
  • 22-09-1985 01:51:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7630, 13.8890 at 1 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
Mosciano Sant'Angelo TE 1 9308 9308
Tortoreto TE 5 11542 20850
Giulianova TE 6 24050 44900
Bellante TE 7 7152 52052
Sant'Omero TE 8 5243 57295
Corropoli TE 9 5045 62340
Alba Adriatica TE 9 12353 74693
Nereto TE 9 5242 79935
Castellalto TE 11 7513 87448
Morro d'Oro TE 11 3661 91109
Torano Nuovo TE 11 1611 92720
Notaresco TE 12 6907 99627
Controguerra TE 12 2436 102063
Colonnella TE 12 3734 105797
Roseto degli Abruzzi TE 14 25537 131334
Martinsicuro TE 14 16033 147367
Canzano TE 15 1934 149301
Ancarano TE 15 1857 151158
Sant'Egidio alla Vibrata TE 16 9811 160969
Campli TE 17 7209 168178
Monsampolo del Tronto AP 17 4611 172789
Spinetoli AP 17 7215 180004
Colli del Tronto AP 17 3668 183672
Monteprandone AP 18 12655 196327
Maltignano AP 18 2401 198728
Civitella del Tronto TE 18 5116 203844
Castel di Lama AP 19 8634 212478
Teramo TE 19 54892 267370
Cellino Attanasio TE 20 2520 269890

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Teramo (54892 inhabitants)
35 Km NW of Montesilvano (53738 inhabitants)
43 Km NW of Pescara (121014 inhabitants)
51 Km NW of Chieti (51815 inhabitants)
61 Km NE of L'Aquila (69753 inhabitants)
99 Km E of Foligno (57155 inhabitants)
100 Km SE of Ancona (100861 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 3.5 1985-09-21
23:51:14
42.763 13.889 1 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 13549
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-09-21 23:51:14 ± 0.619
Latitude 42.7630 ± 0.0168
Longitude 13.8890 ± 0.0317
Depth (km) 1 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 13549

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 3191.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 149
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00210
Epicentral distance of station farthest from the epicenter (degree) 0.03562
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitude information

Md:3.5

Field Value
Value 3.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 13549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:16:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.PAG.Z. 1985-09-21T23:52:16.10 10.0 undecidable manual PN 329 0.0354 -0.26 0.9
--.FO1.Z. 1985-09-21T23:52:16.00 10.0 undecidable manual PN 348 0.0351 0.03 0.9
--.RNI.Z. 1985-09-21T23:52:16.00 10.0 undecidable manual PN 325 0.0356 -0.73 0.7
--.CVF.Z. 1985-09-21T23:52:14.60 10.0 undecidable manual PN 268 0.0332 1.59 0.3
--.CTI.Z. 1985-09-21T23:52:12.50 10.0 undecidable manual PN 334 0.0328 0.07 1
--.BAL.Z. 1985-09-21T23:52:11.90 10.0 undecidable manual PN 325 0.0334 -1.38 0.4
--.VOY.Z. 1985-09-21T23:52:06.30 10.0 undecidable manual PN 359 0.0294 -0.86 0.7
--.PS9.Z. 1985-09-21T23:51:58.00 10.0 undecidable manual PN 292 0.0236 -0.41 1.1
--.SD1.Z. 1985-09-21T23:51:53.50 10.0 undecidable manual SG? 182 0.0095 1.15 0
--.TR9.Z. 1985-09-21T23:51:51.80 10.0 undecidable manual PN 149 0.0178 2.24 0.1
--.AS1.Z. 1985-09-21T23:51:49.00 10.0 undecidable manual SG 288 0.0085 -0.09 0.6
--.MNS.Z. 1985-09-21T23:51:49.00 10.0 undecidable manual SG 247 0.0087 -0.49 0.5
--.MSC.Z. 1985-09-21T23:51:44.80 10.0 undecidable manual PN 177 0.0141 0.91 1
--.PRO.Z. 1985-09-21T23:51:43.00 10.0 undecidable manual PN 327 0.0123 1.91 0.2
--.RDP.Z. 1985-09-21T23:51:41.30 10.0 undecidable manual PN 220 0.0119 0.77 1.1
--.CM2.Z. 1985-09-21T23:51:41.00 10.0 undecidable manual SG 308 0.0062 0.21 0.9
--.SGG.Z. 1985-09-21T23:51:41.30 10.0 undecidable manual PN 164 0.0128 -0.55 1.3
--.AQU.Z. 1985-09-21T23:51:35.00 10.0 undecidable manual SG 221 0.0049 -0.73 0.5
--.SD1.Z. 1985-09-21T23:51:35.00 10.0 undecidable manual PG 182 0.0095 -1.48 0.5
--.MNS.Z. 1985-09-21T23:51:34.50 10.0 undecidable manual PG 247 0.0087 -0.33 1.4
--.AS1.Z. 1985-09-21T23:51:34.00 10.0 negative manual PG 288 0.0085 -0.59 2.5
--.AM1.Z. 1985-09-21T23:51:32.20 10.0 undecidable manual PG 345 0.0073 0.18 2.9
--.CM2.Z. 1985-09-21T23:51:28.90 10.0 undecidable manual PG 308 0.0062 -0.9 2
--.AQU.Z. 1985-09-21T23:51:26.00 10.0 negative manual PG 221 0.0049 -0.88 2
--.ALP.Z. 1985-09-21T23:51:25.30 10.0 undecidable manual SG 274 0.0021 1.4 0.3
--.ALP.Z. 1985-09-21T23:51:21.20 10.0 negative manual PG 274 0.0021 1.16 1.5
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols 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