Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 3.2 on date 04-12-1989 and time 13:22:35 (UTC) in region 2 km W Offida (AP)

A magnitude Md 3.2 earthquake occured in region: 2 km W Offida (AP), on

  • 04-12-1989 13:22:35 (UTC)
  • 04-12-1989 14:22:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9430, 13.6750 at 5 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
Offida AP 2 5058 5058
Castignano AP 4 2796 7854
Appignano del Tronto AP 5 1785 9639
Cossignano AP 5 978 10617
Castorano AP 7 2380 12997
Montalto delle Marche AP 7 2122 15119
Montedinove AP 8 488 15607
Castel di Lama AP 9 8634 24241
Colli del Tronto AP 9 3668 27909
Rotella AP 9 906 28815
Ripatransone AP 10 4309 33124
Spinetoli AP 10 7215 40339
Carassai AP 10 1100 41439
Monsampolo del Tronto AP 11 4611 46050
Ortezzano FM 11 774 46824
Acquaviva Picena AP 11 3831 50655
Monte Rinaldo FM 12 379 51034
Maltignano AP 12 2401 53435
Monte Vidon Combatte FM 13 433 53868
Ascoli Piceno AP 13 49407 103275
Ancarano TE 13 1857 105132
Monteprandone AP 13 12655 117787
Sant'Egidio alla Vibrata TE 13 9811 127598
Montefiore dell'Aso AP 14 2123 129721
Folignano AP 14 9241 138962
Petritoli FM 14 2335 141297
Montelparo FM 14 778 142075
Force AP 15 1354 143429
Montottone FM 15 979 144408
Controguerra TE 15 2436 146844
Torano Nuovo TE 16 1611 148455
Massignano AP 16 1638 150093
Venarotta AP 16 2066 152159
Monterubbiano FM 16 2230 154389
Monteleone di Fermo FM 17 395 154784
Grottammare AP 17 16006 170790
Moresco FM 17 598 171388
Santa Vittoria in Matenano FM 17 1330 172718
Monsampietro Morico FM 17 659 173377
San Benedetto del Tronto AP 17 47303 220680
Monte Giberto FM 17 801 221481
Colonnella TE 18 3734 225215
Cupra Marittima AP 18 5398 230613
Ponzano di Fermo FM 18 1674 232287
Nereto TE 18 5242 237529
Palmiano AP 18 196 237725
Montefalcone Appennino FM 18 424 238149
Corropoli TE 18 5045 243194
Roccafluvione AP 19 2010 245204
Civitella del Tronto TE 19 5116 250320
Campofilone FM 19 1916 252236
Grottazzolina FM 20 3398 255634
Belmonte Piceno FM 20 646 256280
Smerillo FM 20 365 256645

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km N of Teramo (54892 inhabitants)
61 Km NW of Montesilvano (53738 inhabitants)
69 Km NW of Pescara (121014 inhabitants)
70 Km NE of L'Aquila (69753 inhabitants)
76 Km S of Ancona (100861 inhabitants)
77 Km NW of Chieti (51815 inhabitants)
79 Km E of Foligno (57155 inhabitants)
94 Km E of Terni (111501 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 3.2
ML-VAX 2.7 		1989-12-04
13:22:35		 42.943 13.675 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 105449
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-12-04 13:22:35 ± 0.288
Latitude 42.9430 ± 0.0112
Longitude 13.6750 ± 0.0289
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 105449

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) 2663.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.03189
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

Md:3.2

Field Value
Value 3.2
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 105449
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:38:11

ML:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 105449
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.VOY.Z. 1989-12-04T13:24:00.80 10.0 undecidable manual SN 2 3.0858 -0.37 0.3
--.BOB.Z. 1989-12-04T13:23:32.90 10.0 undecidable manual PN 302 3.5409 1.49 0.2
--.VOY.Z. 1989-12-04T13:23:24.30 10.0 undecidable manual PN? 2 3.0858 -0.8 0.2
--.CRE.Z. 1989-12-04T13:23:20.80 10.0 undecidable manual SN 298 1.4208 -0.76 0.4
--.RDP.Z. 1989-12-04T13:23:19.80 10.0 undecidable manual SN 211 1.3764 -0.68 0.4
--.SDI.Z. 1989-12-04T13:23:17.60 10.0 undecidable manual SN 175 1.2321 -0.04 0.6
--.PGD.Z. 1989-12-04T13:23:07.40 10.0 undecidable manual PN 303 1.6872 1.43 0.3
--.MNS.Z. 1989-12-04T13:23:07.17 10.0 undecidable manual SG 232 0.9213 -1.04 0.3
--.SFI.Z. 1989-12-04T13:23:05.40 10.0 positive manual PN 306 1.6317 0.24 2.4
--.SGG.Z. 1989-12-04T13:23:05.70 10.0 undecidable manual PN 161 1.6317 0.5 1.1
--.ARV.Z. 1989-12-04T13:23:04.61 10.0 undecidable manual SG 316 0.7659 1.21 0.2
--.ASS.Z. 1989-12-04T13:23:02.74 10.0 undecidable manual SG 279 0.7548 -0.26 0.6
--.CRE.Z. 1989-12-04T13:23:02.80 10.0 undecidable manual PN 298 1.4208 0.56 1.1
--.RSM.Z. 1989-12-04T13:23:01.94 10.0 negative manual PN 318 1.3209 1.06 1.3
--.RMP.Z. 1989-12-04T13:23:01.60 10.0 undecidable manual PN 212 1.332 0.53 1.2
--.RDP.Z. 1989-12-04T13:23:01.80 10.0 undecidable manual PN 211 1.3764 0.19 1.4
--.AM8.Z. 1989-12-04T13:22:59.00 10.0 undecidable manual SG 354 0.5994 0.78 0.6
--.CP9.Z. 1989-12-04T13:22:59.69 10.0 undecidable manual PN 206 1.1988 0.47 1.3
--.SDI.Z. 1989-12-04T13:22:58.81 10.0 undecidable manual PN 175 1.2321 -0.86 0.9
--.MNS.Z. 1989-12-04T13:22:53.10 10.0 undecidable manual PG 232 0.9213 -1.43 0.4
--.CM8.Z. 1989-12-04T13:22:53.20 10.0 undecidable manual SG 303 0.4551 -0.34 0.8
--.MC8.Z. 1989-12-04T13:22:52.96 10.0 undecidable manual SG 332 0.3996 1.76 0.1
--.ASS.Z. 1989-12-04T13:22:50.38 10.0 undecidable manual PG 279 0.7548 -1.14 0.6
--.ARV.Z. 1989-12-04T13:22:50.65 10.0 undecidable manual PG 316 0.7659 -1.11 0.7
--.AM8.Z. 1989-12-04T13:22:47.50 10.0 negative manual PG 354 0.5994 -1.26 1
--.CM8.Z. 1989-12-04T13:22:45.50 10.0 negative manual PG 303 0.4551 -0.56 2.5
--.ALP.Z. 1989-12-04T13:22:44.20 10.0 undecidable manual SG 205 0.1776 1.18 0.3
--.MC8.Z. 1989-12-04T13:22:44.40 10.0 negative manual PG 332 0.3996 -0.31 2.9
--.RM8.Z. 1989-12-04T13:22:43.40 10.0 negative manual PG 271 0.333 -0.09 3
--.ALP.Z. 1989-12-04T13:22:40.15 10.0 positive manual PG 205 0.1776 0.16 3
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, /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